{"id":1845780,"date":"2026-03-24T13:30:58","date_gmt":"2026-03-24T10:30:58","guid":{"rendered":"https:\/\/analyse.optim.biz\/?p=1845780"},"modified":"2026-03-24T13:30:58","modified_gmt":"2026-03-24T10:30:58","slug":"pirelli-boasts-new-aerodynamic-trick-with-its-new-p-zero-sl-r-race-tyre","status":"publish","type":"post","link":"https:\/\/analyse.optim.biz\/?p=1845780","title":{"rendered":"Pirelli boasts new aerodynamic trick with its new P-Zero SL-R race tyre"},"content":{"rendered":"<p>[analyse_image type=&#8221;featured&#8221; src=&#8221;https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-2560-80.jpg&#8221;]<\/p>\n<p><article class=\"page-content-onecol flex-1\nnews-article article\n\"><\/p>\n<div class=\"widget-area-group widget-area-group-2col flex flex-wrap box-border\">\n<div id=\"widgetArea16\" class=\"widget-area basis-full md:basis-2\/3 widget-area-g-md-vp-2-3 widget-area-g-lg-vp-2-3 widget-area-g-xl-vp-2-3 page-widget-area-16\">\n<div data-widget-type=\"hero\" id=\"hero\" class=\"clear-both widget widget-hero widget-hero widget-hero-hero widget-hero widget-hero-fter-news\">\n<div class=\"news-article\">\n<header data-component-name=\"Article:Hero\">\n<nav class=\"breadcrumb\" aria-label=\"Breadcrumbs\">\n<ol>\n<li>\nCycling Tech &amp; Components\n<\/li>\n<li>\nWheels &amp; Tyres\n<\/li>\n<\/ol>\n<\/nav>\n<h1>Pirelli boasts new aerodynamic trick with its new P-Zero SL-R race tyre<\/h1>\n<div class=\"byline-social\">\n<div class=\"byline\">\nNews<\/p>\n<div class=\"text-[13px]\"><span><br \/>\nBy<br \/>\nPaul Norman <\/span><span><br \/>\npublished<br \/>\n<time data-component-name=\"UI:DateTime\" datetime=\"2026-03-24T13:30:58Z\" class=\"relative-date\"><br \/>\n24 March 2026<br \/>\n<\/time><\/span><\/div>\n<\/div>\n<p class=\"strapline\">The new Pirelli tyres focus on improving the relationship between tyres and wheel rims to boost aero performance <\/p>\n<\/div>\n<aside class=\"mx-auto mb-4 flex items-center justify-start mx-0 my-5 p-0\" id=\"affiliate-disclaimer\" data-component-name=\"AffiliateDisclaimer\" data-hawk-message=\"Affiliate disclaimer removed because hawk deemed there are no affiliate links on this page\">\n<p class=\"text-700 mb-2 text-[12px] leading-[18px] md:text-[13px] [&amp;&gt;a]:text-gray-700 [&amp;&gt;a]:underline\">\nWhen you purchase through links on our site, we may earn an affiliate commission. Here\u2019s how it works.\n<\/p>\n<\/aside>\n<\/header>\n<\/div>\n<\/div>\n<div data-widget-type=\"contentparsed\" id=\"content\" class=\"clear-both widget widget-contentparsed widget-content widget-contentparsed-content widget-content-parsed widget-content-parsed-content_document \">\n<div class=\"wcp-item-content\">\n<section class=\"content-wrapper\">\n<div class=\"box less-space hero-image-wrapper\">\n<figure class=\"mb-0\">\n<source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-1920-80.jpg.webp 1920w, https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-1200-80.jpg.webp 1200w, https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-1024-80.jpg.webp 1024w, https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-970-80.jpg.webp 970w, https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-480-80.jpg.webp 480w, https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-320-80.jpg.webp 320w\" sizes=\"(min-width: 1000px) 600px, calc(100vw - 40px)\" \/><figcaption class=\"mt-2\"><span class=\"credit\">(Image credit: Future)<\/span><\/figcaption><\/figure>\n<\/div>\n<div id=\"article-body\" class=\"text-copy bodyCopy auto paywall-locker\">\n<div data-analytics-id=\"utility-bar\" id=\"utility-bar\" class=\"font-ui-heading flex justify-between items-center py-2 border-t border-b border-gray-300 border-solid mb-5 mx-auto\" data-component-name=\"UtilityBar\" data-mrf-recirculation=\"utility-bar\">\n<div class=\"flex gap-2 text-[#333] subcontainer\">\n<div class=\"relative tooltip-container\" role=\"tooltip\">\n<div data-component-name=\"Social:Dropdown\" role=\"menu\" id=\"utilitybar__dropdown--share\" aria-labelledby=\"utilitybar__button--share\" class=\"absolute left-0 top-full w-44 bg-white rounded-md shadow-md border border-neutral-200 z-[9996] list-none m-0 py-2 px-3 border-solid\">\n<ul class=\"!m-0\">\n<li class=\"!p-0 !m-0 list-none border-b border-gray-200 border-solid\">\n<li class=\"!p-0 !m-0 list-none border-b border-gray-200 border-solid\">\n<p>Facebook<\/p>\n<\/li>\n<li class=\"!p-0 !m-0 list-none border-b border-gray-200 border-solid\">\n<p>X<\/p>\n<\/li>\n<li class=\"!p-0 !m-0 list-none border-b border-gray-200 border-solid\">\n<p>Pinterest<\/p>\n<\/li>\n<li class=\"!p-0 !m-0 list-none border-b border-gray-200 border-solid\">\n<p>Email<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<div class=\"font-ui-heading max-sm:hidden tooltip absolute left-1\/2 bg-gray-900 text-white text-xs leading-none px-3 py-1.5 rounded-md z-[10001] whitespace-nowrap\" id=\"tooltip-share-this-article\" role=\"tooltip\" aria-hidden=\"true\">\nShare this article\n<\/div>\n<\/div>\n<div class=\"relative tooltip-container\" role=\"tooltip\"><span class=\"ml-1 sm:ml-1.5 font-base text-xs\"><span class=\"font-normal\">0<\/span><\/span><\/p>\n<div class=\"font-ui-heading max-sm:hidden tooltip absolute left-1\/2 bg-gray-900 text-white text-xs leading-none px-3 py-1.5 rounded-md z-[10001] whitespace-nowrap\" id=\"tooltip-join-the-conversation\" role=\"tooltip\" aria-hidden=\"true\">\nJoin the conversation\n<\/div>\n<\/div>\n<\/div>\n<div class=\"flex gap-2 text-[#333] subcontainer\">\n<div class=\"relative tooltip-container\" role=\"tooltip\">\n<p>Follow us<\/p>\n<div class=\"font-ui-heading max-sm:hidden tooltip absolute left-1\/2 bg-gray-900 text-white text-xs leading-none px-3 py-1.5 rounded-md z-[10001] whitespace-nowrap\" id=\"tooltip-add-us-as-a-preferred-source-on-google\" role=\"tooltip\" aria-hidden=\"true\">\nAdd us as a preferred source on Google\n<\/div>\n<\/div>\n<div class=\"relative tooltip-container\" role=\"tooltip\">\n<div role=\"dialog\" class=\"hidden fixed inset-0 z-[999999999999999999] bg-[#33333370] flex items-center justify-center p-6 newsletter-modal\" data-batch-endpoint=\"https:\/\/newsletter-subscribe.futureplc.com\/v2\/submission\/submit_batch\" data-batch-source=\"302\" data-component-name=\"Newsletter:Modal\">\n<div class=\"bg-neutral-100 rounded-xl shadow-xl w-full lg:w-2\/3 xl:w-1\/2 p-6 relative max-h-[95vh] overflow-y-auto\">\n<div id=\"newsletter-capture-modal\">\n<div class=\"sm:text-xl text-base font-bold text-black mb-3 p-0 bg-inherit font-ui-heading\">Get The Leadout Newsletter<\/div>\n<p class=\"text-gray-600 mb-4 text-sm sm:text-base font-article-copy\">The latest race content, interviews, features, reviews and expert buying guides, direct to your inbox!<\/p>\n<div data-component-name=\"Newsletter:NewsletterForm\">\n<hr class=\"modal_hr mt-3 mb-4 h-px bg-gray-300 border-0\">\n<div class=\"modal_footer block text-left opacity-80 text-[.8em] leading-[1.3em] mt-2 [&amp;&gt;a]:underline font-article-copy\">\nBy submitting your information you agree to the Terms &amp; Conditions and Privacy Policy and are aged 16 or over.\n<\/div>\n<\/div>\n<\/div>\n<div id=\"newsletter-modal-confirmation\" class=\"hidden\">\n<p class=\"sm:text-xl text-base font-bold text-black mb-3 p-0\">You are now subscribed<\/p>\n<p class=\"text-gray-600 mb-4 text-sm sm:text-base\">Your newsletter sign-up was successful<\/p>\n<div id=\"newsletter-modal-confirmation__userlogin\" class=\"hidden\">\n<hr class=\"my-5 h-px bg-gray-300 border-0\">\n<div class=\"items-start flex flex-col h-full justify-between\">\n<div class=\"flcw-text pb-5 pt-2 leading-[1.3]\"> An account already exists for this email address, please log in.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"font-ui-heading max-sm:hidden tooltip absolute left-1\/2 bg-gray-900 text-white text-xs leading-none px-3 py-1.5 rounded-md z-[10001] whitespace-nowrap\" id=\"tooltip-subscribe-to-our-newsletter\" role=\"tooltip\" aria-hidden=\"true\">\nSubscribe to our newsletter\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p id=\"2b4509ff-8dea-4ba8-b3bf-f2ee3a9bb93a\">Pirelli has launched the brand new P Zero Race SL-R tyre today, which it claims is the ultimate road racing tyre, offering best-in-class aerodynamics, along with low rolling resistance, grip, handling and comfort.<\/p>\n<p>Along with these big claims, the brand claims a 2-watt normalised aero gain at 45km\/h has been achieved relative to its P Zero Race RS &#8211; the brand&#8217;s current flagship road tyre.<\/p>\n<p id=\"2b4509ff-8dea-4ba8-b3bf-f2ee3a9bb93a-2\" class=\"paywall\" aria-hidden=\"true\">The eagle-eyed out there may have spotted pro riders racing on Pirelli tyres marked &#8216;Prototype&#8217; for quite a while now, and it appears the time is now right for Pirelli to officially reveal what these new tyres are.<\/p>\n<p><span class=\"article-continues-below block py-2 text-sm\">Article continues below <\/span><\/p>\n<aside data-component-name=\"Recirculation:ArticleRiver\" data-recirculation-type=\"inline\" data-mrf-recirculation=\"Trending Bar\" data-nosnippet class=\"clear-both pb-0 pt-2 mb-4\"><span class=\"\n            flex\n            after:content-[''] after:flex-1 after:ml-4 after:my-[0.7rem] after:border-t after:border-solid after:border-t-[#ccc]\n            before:content-[''] before:flex-1 before:mr-4 before:my-[0.7rem] before:border-t before:border-solid before:border-t-[#ccc]\n            font-article-heading pb-0 !text-base uppercase sm:text-sm font-bold\n        \"><br \/>\n            You may like<br \/>\n        <\/span><\/p>\n<ul class=\"flex flex-col gap-0 m-0\">\n<li class=\"m-0 list-none border-b border-solid border-[#ededed] py-2\" data-recirculation-id=\"recirculation-card-1\" data-analytics-id=\"recirculation-inline-1\" data-mrf-recirculation=\"recirculation-inline-1\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">Best road bike tyres 2026: Our experts&#8217; favourite tubeless and clincher tyres<\/span><\/li>\n<li class=\"m-0 list-none border-b border-solid border-[#ededed] py-2\" data-recirculation-id=\"recirculation-card-2\" data-analytics-id=\"recirculation-inline-2\" data-mrf-recirculation=\"recirculation-inline-2\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">Best tubeless road tyres 2026: Faster, more comfortable and less puncture-prone<\/span><\/li>\n<li class=\"m-0 list-none border-b border-solid border-[#ccc] py-2\" data-recirculation-id=\"recirculation-card-3\" data-analytics-id=\"recirculation-inline-3\" data-mrf-recirculation=\"recirculation-inline-3\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">We thought wider gravel tyres were always faster, but it&#8217;s not as simple as that: New aero and rolling resistance lab tests combined<\/span><\/li>\n<\/ul>\n<\/aside>\n<p class=\"paywall\" aria-hidden=\"true\">Pirelli has focused on the performance and aerodynamic drag of the wheel and tyre system overall. We recently caught up with Pirelli product manager Carlo Di Clemente to learn more.<\/p>\n<p class=\"paywall\" aria-hidden=\"true\">Di Clemente says that, although 80% of the drag when riding comes from the rider, of the residual 20%, up to 5% can come from the front wheel and tyre. This is increased by the trend to wider tyres on wide rims, which increases the frontal aero presented to the wind.<\/p>\n<p class=\"paywall\" aria-hidden=\"true\">It appears Pirelli has focused on this and sought to reduce flow separation at the interface between the front tyre and wheel rim and maximise the sailing effect to improve aerodynamic performance.<\/p>\n<p>The development of the P Zero Race SL-R drew on Pirelli\u2019s expertise in aerodynamics and CFD simulation and used tools from Pirelli\u2019s MotoGP and F1 divisions in an 18-month development programme.<\/p>\n<div id=\"slice-container-newsletterForm-articleInbodyContent-oEuUm7gkitzHSGLeSHUSjm\" class=\"slice-container newsletter-inbodyContent-slice newsletterForm-articleInbodyContent-oEuUm7gkitzHSGLeSHUSjm slice-container-newsletterForm\">\n<div data-hydrate=\"true\" class=\"newsletter-form__wrapper newsletter-form__wrapper--inbodyContent\">\n<div class=\"newsletter-form__container\">\n<section class=\"newsletter-form__top-bar\">\n<div class=\"newsletter-form__header\">Get The Leadout Newsletter<\/div>\n<\/section>\n<section class=\"newsletter-form__main-section\">\n<p class=\"newsletter-form__strapline\">The latest race content, interviews, features, reviews and expert buying guides, direct to your inbox!<\/p>\n<footer class=\"newsletter-form__footer \">By submitting your information you agree to the Terms &amp; Conditions and Privacy Policy and are aged 16 or over.<\/footer>\n<\/section>\n<\/div>\n<\/div>\n<\/div>\n<p>Over 14 iterations, analysis included a range of proprietary techniques such as unsteady flow simulations borrowed from Pirelli\u2019s other divisions.<\/p>\n<p>Pirelli also took the tyres to four different wind tunnels over eight testing sessions. Di Clemente says that although the results for different wind tunnels weren\u2019t precisely the same, they were consistent.<\/p>\n<h2 id=\"patented-paas-technology-3\">Patented PAAS technology<\/h2>\n<figure class=\"van-image-figure inline-layout\" data-bordeaux-image-check id=\"32d7afad-d862-4afe-ae80-6b044aa0f405\">\n<div class=\"image-full-width-wrapper\">\n<div class=\"image-widthsetter\">\n<p class=\"vanilla-image-block\">\n<source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-1200-80.jpg.webp 1200w, https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-1024-80.jpg.webp 1024w, https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-970-80.jpg.webp 970w, https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-480-80.jpg.webp 480w, https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-320-80.jpg.webp 320w\" sizes=\"(min-width: 1000px) 970px, calc(100vw - 40px)\" \/><\/p>\n<\/div>\n<\/div><figcaption class=\" inline-layout\"><span class=\"caption-text\">Pirelli took its prototype tyre to four different wind tunnels to confirm its results <\/span><span class=\"credit\">(Image credit: Pirelli)<\/span><\/figcaption><\/figure>\n<p id=\"c16139e3-e8db-4392-a94a-f7cf1e406299\">Previously, brands have made tyres more aero by utilising features such as the vortex generators used in the Continental Aero 111 tyre and the new Cadex Aero tyre. Others, such as the previous generation Cadex aero tyre, have a narrow and tall section. Another option is to use a tyre that\u2019s narrower than the rim to reduce frontal area, a design which can be observed on Roval Rapide front wheels.<\/p>\n<aside data-component-name=\"Recirculation:ArticleRiver\" data-recirculation-type=\"inline\" data-mrf-recirculation=\"Trending Bar\" data-nosnippet class=\"clear-both pb-0 pt-2 mb-4\"><span class=\"\n            flex\n            after:content-[''] after:flex-1 after:ml-4 after:my-[0.7rem] after:border-t after:border-solid after:border-t-[#ccc]\n            before:content-[''] before:flex-1 before:mr-4 before:my-[0.7rem] before:border-t before:border-solid before:border-t-[#ccc]\n            font-article-heading pb-0 !text-base uppercase sm:text-sm font-bold\n        \"><br \/>\n            What to read next<br \/>\n        <\/span><\/p>\n<ul class=\"flex flex-col gap-0 m-0\">\n<li class=\"m-0 list-none border-b border-solid border-[#ededed] py-2\" data-recirculation-id=\"recirculation-card-1\" data-analytics-id=\"recirculation-2-inline-1\" data-mrf-recirculation=\"recirculation-2-inline-1\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">After nine months of teasing, Specialized finally launches new tubeless cotton tyres<\/span><\/li>\n<li class=\"m-0 list-none border-b border-solid border-[#ededed] py-2\" data-recirculation-id=\"recirculation-card-2\" data-analytics-id=\"recirculation-2-inline-2\" data-mrf-recirculation=\"recirculation-2-inline-2\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">&#8216;A component that&#8217;s poorly understood&#8217; \u2013 Are tyres the next marginal gain for Dan Bigham at Red Bull-Bora-Hansgrohe?<\/span><\/li>\n<li class=\"m-0 list-none border-b border-solid border-[#ccc] py-2\" data-recirculation-id=\"recirculation-card-3\" data-analytics-id=\"recirculation-2-inline-3\" data-mrf-recirculation=\"recirculation-2-inline-3\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">32-inch gravel wheels, aero tyres and more: Six tech highlights from the Cycling World Europe show<\/span><\/li>\n<\/ul>\n<\/aside>\n<p>Di Clemente claims that these approaches have their deficiencies. Vortex generators work better at high yaw angles but may increase drag at low yaw angles, while a pointy tyre can impact handling, and both can increase rolling resistance. Meanwhile, a narrower tyre has to be run at higher pressure, which can result in the by now well-known impacts on rolling resistance and comfort.<\/p>\n<p>In contrast, the P Zero Race SL-R has a standard profile and a slick tread. Its aero performance instead comes from its patented PAAS technology. This adds rubber at the tyre\u2019s side, increasing the tyre\u2019s width in the space above the rim, helping to smooth the tyre-to-rim interface.<\/p>\n<p>Signifying Pirelli Advanced Aerodynamic System, PAAS results from Pirelli\u2019s research finding that there\u2019s a specific positioning of the tyre\u2019s widest point relative to the tyre\u2019s height, when mounted on the rim, which provides optimal aerodynamic performance.<\/p>\n<p>As such, the PAAS profile is tyre-width specific, although the effect is seen across a range of rim profiles and yaw angles, particularly at higher yaw. Pirelli says that PAAS continues to be effective even as the tyre tread wears.<\/p>\n<p>It\u2019s similar to how Trek tried to smooth the airflow between the tyre and rim with its Bontrager R4 320 tyre, which was launched over a decade ago. However, Di Clemente says that Pirelli\u2019s approach still allows the tyre to be mounted and removed easily. Interestingly, he claims that the small groove around the edge of the tyre above the rim doesn\u2019t affect the new tyre\u2019s aerodynamics.<\/p>\n<p>Pirelli found that the width of the PAAS layer needed to vary by tyre width, so the brand will be launching the P Zero Race SL-R in just 28mm and 30mm widths, with a larger 32mm size scheduled to follow in October. The 28mm tyre has a 275g claimed weight, 15g less than the P Zero Race RS, although we weighed a pair at 286g and 288g.<\/p>\n<h2 id=\"2-watts-faster-than-the-p-zero-race-rs-3\">2 watts faster than the P Zero Race RS<\/h2>\n<figure class=\"van-image-figure inline-layout\" data-bordeaux-image-check id=\"07b3f9ad-374f-4f9f-af59-4790b51b02b2\">\n<div class=\"image-full-width-wrapper\">\n<div class=\"image-widthsetter\">\n<p class=\"vanilla-image-block\">\n<source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-813-80.jpg.webp 1200w, https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-813-80.jpg.webp 1024w, https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-813-80.jpg.webp 970w, https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-480-80.jpg.webp 480w, https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-320-80.jpg.webp 320w\" sizes=\"(min-width: 1000px) 970px, calc(100vw - 40px)\" \/><\/p>\n<\/div>\n<\/div><figcaption class=\" inline-layout\"><span class=\"caption-text\">Pirelli&#8217;s results show a marked decrease in drag at high yaw angles versus the P Zero Race RS <\/span><span class=\"credit\">(Image credit: Pirelli)<\/span><\/figcaption><\/figure>\n<p id=\"800b5ee4-8eb8-443e-939f-7905a6a03ea5\">As well as multiple wind tunnel runs, Pirelli tested its new tyre on four different rims, including hooked and hookless designs and popular models from Zipp and DT Swiss.<\/p>\n<p>We asked for a little more information on the brand&#8217;s wind tunnel testing procedures and learned that a 60mm deep, hooked wheel was tested, which had a 23mm internal width. 28mm tyres were tested at an airspeed of 45km\/h.<\/p>\n<p>Overall, the brand&#8217;s wind tunnel testing shows a 2-watt aero gain in weighted average drag over the P Zero Race RS, normalised over yaw angles of up to 20 degrees at lower speeds. In a high wind test, this increased to 5 watts, due to a greater sailing effect at higher yaw angles.<\/p>\n<p>At a high yaw angle of 15 to 20 degrees, Pirelli claims it found a huge 15-watt saving versus the P Zero Race RS 28mm tyre in a single measurement point. Di Clemente says that this is likely due to the absence of a tread pattern on the new tyre, as Pirelli found that adding a grooved tread, which the P Zero Race RS has, impacted aerodynamics.<\/p>\n<p>The 15-watt figure is an edge case and peculiar to Pirelli\u2019s tyres; the energy saving is less marked, but still significant, relative to competitors\u2019 tyres it also tested at lower yaw angles. Overall, the key takeaway is roughly a 2-watt claimed saving over the previous Pirelli range topper; it&#8217;s unrealistic to expect huge 15-odd-watt real-world savings just by switching tyres.<\/p>\n<p>In its quest for aero optimisation, Pirelli has also reduced the font size of the embossed tyre info, which is mandated for all tyres, to the permitted minimum to avoid aerodynamic interference.<\/p>\n<h2 id=\"10-lower-rolling-resistance-3\">10% lower rolling resistance<\/h2>\n<figure class=\"van-image-figure inline-layout\" data-bordeaux-image-check id=\"43a95640-bfa9-42f1-832c-d9bbbb39940a\">\n<div class=\"image-full-width-wrapper\">\n<div class=\"image-widthsetter\">\n<p class=\"vanilla-image-block\">\n<source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-1200-80.jpg.webp 1200w, https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-1024-80.jpg.webp 1024w, https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-970-80.jpg.webp 970w, https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-480-80.jpg.webp 480w, https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-320-80.jpg.webp 320w\" sizes=\"(min-width: 1000px) 970px, calc(100vw - 40px)\" \/><\/p>\n<\/div>\n<\/div><figcaption class=\" inline-layout\"><span class=\"caption-text\">Pirelli says that the shape of the tyre improves its aerodynamics and that the small discontinuity between the tyre and rim doesn&#8217;t impact the result <\/span><span class=\"credit\">(Image credit: Pirelli)<\/span><\/figcaption><\/figure>\n<p id=\"03909064-0961-451a-b64a-b407fb27334f\">Turning to rolling resistance, Pirelli uses the same Smart Evo 2 rubber compound in its P Zero Race SL-R, derived from its motorsport tyres, as in its P Zero Race RS tyre, which came out mid-pack in our CN Labs own rolling resistance tests of 24 tyres.<\/p>\n<p>Nevertheless, it says that there\u2019s a 10% decrease in rolling resistance, amounting to 2 watts saved per pair of tyres, due to its new LiteCore 120 TPI tubeless-ready casing.<\/p>\n<p>The lighter casing is claimed to be more supple, increasing ride comfort and grip, as well as lowering weight.<\/p>\n<p>Despite a lighter casing, there\u2019s still a puncture protection belt built into the tyre, and Di Clemente says that the mileage you can expect is the same as for the P Zero Race RS tyre.<\/p>\n<p>Pirelli is also likely to launch a time trial version in future, Di Clemente states.<\/p>\n<p>The P Zero Race SL-R is also the first tyre in the P Zero range not to be sold in 26mm width. It\u2019s already been used in the pro ranks and has ridden to two stage wins and the points classification in the 2026 AlUla Tour, as well as Stage 7 of Tirreno-Adriatico, by Lidl-Trek\u2019s Jonathan Milan. Matheu van der Poel himself also appeared to be using the tyres at Milan-San Remo.<\/p>\n<h2 id=\"mounting-and-first-ride-impressions-3\">Mounting and first ride impressions<\/h2>\n<figure class=\"van-image-figure inline-layout\" data-bordeaux-image-check id=\"727985dd-c943-428c-bad3-e42844ba2843\">\n<div class=\"image-full-width-wrapper\">\n<div class=\"image-widthsetter\">\n<p class=\"vanilla-image-block\">\n<source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-1200-80.jpg.webp 1200w, https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-1024-80.jpg.webp 1024w, https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-970-80.jpg.webp 970w, https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-480-80.jpg.webp 480w, https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-320-80.jpg.webp 320w\" sizes=\"(min-width: 1000px) 970px, calc(100vw - 40px)\" \/><\/p>\n<\/div>\n<\/div><figcaption class=\" inline-layout\"><span class=\"caption-text\">The 28mm tyre inflated on a tubeless rim with just a track pump <\/span><span class=\"credit\">(Image credit: Future)<\/span><\/figcaption><\/figure>\n<p id=\"c52ebf37-3d55-4634-8797-119b89773d6f\">As with many tubeless tyres, mounting the P Zero Race SL-R tyres was a bit of an ordeal. But once on the rim, I seated both tyres first time with just a track pump, and they held air immediately. On a 19mm hooked rim, they measured exactly 28mm.<\/p>\n<p>A ride of a couple of hours suggested that they provide good comfort on typical UK road surfaces, and they felt as if they rode performance tyre fast, even if I had no basis to assess the aero claims.<\/p>\n<h2 id=\"pirelli-p-zero-race-sl-r-prices-3\">Pirelli P Zero Race SL-R prices <\/h2>\n<p id=\"046dab9b-9b78-487d-b1fd-d759e05ab6b3\">Both the 28mm and 30mm width of the Pirelli P Zero Race SL-R tyre are priced at \u00a394.99 in the UK, or \u00a399.99 for the Team Issue tyre with yellow logos, as ridden by Mathieu van der Poel.<\/p>\n<p>In Europe, both the standard and Team Issue tyres cost \u20ac99.99.<\/p>\n<\/div>\n<div class=\"block\" id=\"articleTag\" data-component-name=\"PostArticleLinks\" data-nosnippet data-mrf-recirculation=\"post-article-links\">\n<div class=\"border-b border-b-black border-solid py-2.5 text-black font-bold uppercase\">TOPICS<\/div>\n<nav class=\"py-2.5 flex gap-2.5 flex-wrap\" data-analytics-id=\"article-tag\" data-mrf-recirculation=\"article-tag\">\n<p>Tech<\/p>\n<\/nav>\n<\/div>\n<div id=\"slice-container-authorBio-oEuUm7gkitzHSGLeSHUSjm\" class=\"slice-container slice-author-bio authorBio-oEuUm7gkitzHSGLeSHUSjm slice-container-authorBio\">\n<div class=\"author author__default-layout author--separator author--collapsible\" data-hydrate=\"true\">\n<div class=\"author__header\">\n<div class=\"author__heading\">\n<div class=\"author__name\">Paul Norman<\/div>\n<\/div>\n<\/div>\n<div class=\"author__bio-wrapper\">\n<div class=\"author__biography\">\n<p>Paul has been on two wheels since he was in his teens and he&#8217;s spent much of the time since writing about bikes and the associated tech. He&#8217;s a road cyclist at heart but his adventurous curiosity means Paul has been riding gravel since well before it was cool, adapting his cyclo-cross bike to ride all-day off-road epics and putting road kit to the ultimate test along the way.\u00a0Paul has contributed to Cyclingnews&#8217; tech coverage for a few years, helping to maintain the freshness of our buying guides and deals content, as well as writing a number of our voucher code pages.\u00a0<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<div class=\"mt-6 lg:px-0 relative max-w-[1070px] mx-auto viafoura-twig-component px-4\" data-component-name=\"Viafoura:Comments\" data-nosnippet data-community-guidelines-text=\"&lt;p class='vfcustom-community-guidelines'&gt;Please follow our &lt;a href=&quot;https:\/\/www.cyclingnews.com\/about\/#section-community-guidelines&quot; target=&quot;_blank&quot;&gt;community guidelines&lt;\/a&gt;.&lt;\/p&gt;\" data-join-the-conversation-text=\"Join the Conversation\">\n<div class=\"absolute top-0 left-0 w-full h-full flex items-center justify-center z-50 bg-white\/90 border-1\">\n<div class=\"p-2 text-center\">\n<p class=\"mb-3 !text-lg\">You must confirm your public display name before commenting<\/p>\n<p class=\"mb-3 !text-sm\">Please logout and then login again, you will then be prompted to enter your display name.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<section class=\"mx-2 my-5 sm:mx-0\">\n<aside class=\"w-full\" data-nosnippet data-mrf-recirculation=\"article-river-stacked\">\n<div data-recirc-id=\"article-river-stacked-adviser:hybrid\">\n<div class=\"text-white py-4 px-3 mb-4 bg-[#333] uppercase font-bold custom-header-styles\">Read more<\/div>\n<div class=\"grid grid-cols-1 gap-4 mt-4 mb-5\">\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Best road bike tyres 2026: Our experts&#8217; favourite tubeless and clincher tyres<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Best tubeless road tyres 2026: Faster, more comfortable and less puncture-prone<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">We thought wider gravel tyres were always faster, but it&#8217;s not as simple as that: New aero and rolling resistance lab tests combined<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Cycling Tech &amp; Components<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">After nine months of teasing, Specialized finally launches new tubeless cotton tyres<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Cycling Tech &amp; Components<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">&#8216;A component that&#8217;s poorly understood&#8217; \u2013 Are tyres the next marginal gain for Dan Bigham at Red Bull-Bora-Hansgrohe?<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Cycling Tech &amp; Components<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">32-inch gravel wheels, aero tyres and more: Six tech highlights from the Cycling World Europe show<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/aside>\n<aside class=\"w-full\" data-nosnippet data-mrf-recirculation=\"article-river-stacked\">\n<div data-recirc-id=\"article-river-stacked-solr:latest-category\">\n<div class=\"text-white py-4 px-3 mb-4 bg-[#333] uppercase font-bold custom-header-styles\">Latest in Wheels &amp; Tyres<\/div>\n<div class=\"grid grid-cols-1 gap-4 mt-4 mb-5\">\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/v47Gx7qEYJFZwr9LWENh7g-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/v47Gx7qEYJFZwr9LWENh7g-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/v47Gx7qEYJFZwr9LWENh7g-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/v47Gx7qEYJFZwr9LWENh7g-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/v47Gx7qEYJFZwr9LWENh7g-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">The Hunt Spring Sale drops huge discounts of up to 40% on some of our favourite road and gravel wheelsets just in time for summer<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/qxvrZafZvA8FvqdRaBhTCV-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/qxvrZafZvA8FvqdRaBhTCV-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/qxvrZafZvA8FvqdRaBhTCV-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/qxvrZafZvA8FvqdRaBhTCV-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/qxvrZafZvA8FvqdRaBhTCV-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Tadej Poga\u010dar&#8217;s Enve wheels are too deep for the new UCI rules, so how did he get away with using them at Strade Bianche?<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/qmDJsDuK9F9x9mQ2MBh8kU-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/qmDJsDuK9F9x9mQ2MBh8kU-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/qmDJsDuK9F9x9mQ2MBh8kU-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/qmDJsDuK9F9x9mQ2MBh8kU-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/qmDJsDuK9F9x9mQ2MBh8kU-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Continental&#8217;s new Terra Competition gravel tyre looks to offer true mixed surface performance and an aero advantage too<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">We thought wider gravel tyres were always faster, but it&#8217;s not as simple as that: New aero and rolling resistance lab tests combined<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/kAJaUXVoS3a8Li2rfMGnVS-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/kAJaUXVoS3a8Li2rfMGnVS-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/kAJaUXVoS3a8Li2rfMGnVS-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/kAJaUXVoS3a8Li2rfMGnVS-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/kAJaUXVoS3a8Li2rfMGnVS-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">The UCI&#8217;s wheel depth rule is pointless, and our testing data shows why<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/LkyJ3SAHbpgqjKTC8tyyMj-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/LkyJ3SAHbpgqjKTC8tyyMj-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/LkyJ3SAHbpgqjKTC8tyyMj-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/LkyJ3SAHbpgqjKTC8tyyMj-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/LkyJ3SAHbpgqjKTC8tyyMj-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Vittoria Terreno T90 review: Monstrous levels of grip from Vittoria&#8217;s most aggressive gravel tyre<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/aside>\n<aside class=\"w-full\" data-nosnippet data-mrf-recirculation=\"article-river-stacked\">\n<div data-recirc-id=\"article-river-stacked-solr:latest-articletype\">\n<div class=\"text-white py-4 px-3 mb-4 bg-[#333] uppercase font-bold custom-header-styles\">Latest in News<\/div>\n<div class=\"grid grid-cols-1 gap-4 mt-4 mb-5\">\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/nzyms38B5JYoedxhBm7Lnn-840-80.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/nzyms38B5JYoedxhBm7Lnn-650-80.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/nzyms38B5JYoedxhBm7Lnn-500-80.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/nzyms38B5JYoedxhBm7Lnn-450-80.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/nzyms38B5JYoedxhBm7Lnn-320-80.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Training<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Zwift goes outdoors with new Recommendation feature, plus &#8216;Level 100&#8217; limit removed in latest round of updates<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/GxxFuugkKDWfxEYAKmm56a-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/GxxFuugkKDWfxEYAKmm56a-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/GxxFuugkKDWfxEYAKmm56a-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/GxxFuugkKDWfxEYAKmm56a-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/GxxFuugkKDWfxEYAKmm56a-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Doping<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Italian racer provisionally suspended following Enobosarm positive at UAE Tour Women<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/Jkk9xfYrDFcm8tKjEx2pDa-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/Jkk9xfYrDFcm8tKjEx2pDa-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/Jkk9xfYrDFcm8tKjEx2pDa-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/Jkk9xfYrDFcm8tKjEx2pDa-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/Jkk9xfYrDFcm8tKjEx2pDa-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Women&#8217;s cycling (races)<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Breathing support and extended hospital stay required as Debora Silvestri continues recovery from Milan-San Remo crash<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/p4kUxfPHKdVsk8AM95SafR-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/p4kUxfPHKdVsk8AM95SafR-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/p4kUxfPHKdVsk8AM95SafR-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/p4kUxfPHKdVsk8AM95SafR-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/p4kUxfPHKdVsk8AM95SafR-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Streaming<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Exclusive Deal: Grab a free $50 Amazon Gift Card + up to 77% off NordVPN and watch Tour of Flanders, Paris-Roubaix, and Tour de France from anywhere in the world<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/pGdHsEBn7yJPNpHhW884TA-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/pGdHsEBn7yJPNpHhW884TA-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/pGdHsEBn7yJPNpHhW884TA-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/pGdHsEBn7yJPNpHhW884TA-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/pGdHsEBn7yJPNpHhW884TA-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Pro Bikes<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">&#8216;If he&#8217;d known what condition the bike was in, he wouldn&#8217;t have been descending like that&#8217; \u2013 Tadej Poga\u010dar won Milan-San Remo on a cracked frame with disc brake rub<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/KD4KuUX95QPdB7osXmDvhK-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/KD4KuUX95QPdB7osXmDvhK-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/KD4KuUX95QPdB7osXmDvhK-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/KD4KuUX95QPdB7osXmDvhK-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/KD4KuUX95QPdB7osXmDvhK-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Teams &amp; Riders<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">New part-time employment for Chris Froome but cycling career remains officially on hold for now<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/aside>\n<\/section>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"widgetArea17\" class=\"widget-area md:basis-1\/3 widget-area-g-md-vp-1-3 widget-area-g-lg-vp-1-3 widget-area-g-xl-vp-1-3 page-widget-area-17\">\n<div data-widget-type=\"dynamic\" id=\"popular-data\" class=\"clear-both widget widget-dynamic widget-popular-data widget-dynamic-popular-data widget-dynamic-fter-popular-box\">\n<div class=\"wdn-fte-pb pos-relative space-t20\n\"><\/p>\n<div id=\"slice-container-popularBox\" class=\"slice-container popular-box-slice popularBox slice-container-popularBox\">\n<section data-hydrate=\"true\" class=\"popular-box\">\n<div class=\"popular-box__label\">\n<div class=\"popular-box__label__tab popular-box__label__tab--active\" role=\"heading\">LATEST ARTICLES<\/div>\n<\/div>\n<ol class=\"popular-box__articles-list popular-box__articles-list--active\">\n<li class=\"popular-box__article-list\">\n<div class=\"popular-box__article-list__container\">\n<div class=\"popular-box__article-list__image-wrapper\">\n<div><source class=\"popular-box__article-list__image image__image\" type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/LKsf8ya9agMuWV8vZ88T4a-320-80.jpg.webp 320w, https:\/\/cdn.mos.cms.futurecdn.net\/LKsf8ya9agMuWV8vZ88T4a-640-80.jpg.webp 640w, https:\/\/cdn.mos.cms.futurecdn.net\/LKsf8ya9agMuWV8vZ88T4a-720-80.jpg.webp 720w, https:\/\/cdn.mos.cms.futurecdn.net\/LKsf8ya9agMuWV8vZ88T4a-1280-80.jpg.webp 1280w\" sizes=\"99vw\" data-normal=\"https:\/\/cdn.mos.cms.futurecdn.net\/LKsf8ya9agMuWV8vZ88T4a.jpg\" data-original-mos=\"https:\/\/cdn.mos.cms.futurecdn.net\/LKsf8ya9agMuWV8vZ88T4a.jpg\" data-pin-media=\"https:\/\/cdn.mos.cms.futurecdn.net\/LKsf8ya9agMuWV8vZ88T4a.jpg\" data-pin-nopin=\"true\" data-slice-image=\"true\" \/><\/div>\n<\/div>\n<div class=\"popular-box__article-list__content\">\n<div class=\"popular-box__article-list__number-text\">1<\/div>\n<div 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flex-1\nnews-article article\n\"><\/p>\n<div class=\"widget-area-group widget-area-group-2col flex flex-wrap box-border\">\n<div id=\"widgetArea16\" class=\"widget-area basis-full md:basis-2\/3 widget-area-g-md-vp-2-3 widget-area-g-lg-vp-2-3 widget-area-g-xl-vp-2-3 page-widget-area-16\">\n<div data-widget-type=\"hero\" id=\"hero\" class=\"clear-both widget widget-hero widget-hero widget-hero-hero widget-hero widget-hero-fter-news\">\n<div class=\"news-article\">\n<header data-component-name=\"Article:Hero\">\n<nav class=\"breadcrumb\" aria-label=\"Breadcrumbs\">\n<ol>\n<li>\nCycling Tech &amp; Components\n<\/li>\n<li>\nWheels &amp; Tyres\n<\/li>\n<\/ol>\n<\/nav>\n<h1>Pirelli boasts new aerodynamic trick with its new P-Zero SL-R race tyre<\/h1>\n<div class=\"byline-social\">\n<div class=\"byline\">\nNews<\/p>\n<div class=\"text-[13px]\"><span><br \/>\nBy<br \/>\nPaul Norman <\/span><span><br \/>\npublished<br \/>\n<time data-component-name=\"UI:DateTime\" datetime=\"2026-03-24T13:30:58Z\" class=\"relative-date\"><br \/>\n24 March 2026<br \/>\n<\/time><\/span><\/div>\n<\/div>\n<p class=\"strapline\">The new Pirelli tyres focus on improving the relationship between tyres and wheel rims to boost aero performance <\/p>\n<\/div>\n<aside class=\"mx-auto mb-4 flex items-center justify-start mx-0 my-5 p-0\" id=\"affiliate-disclaimer\" data-component-name=\"AffiliateDisclaimer\" data-hawk-message=\"Affiliate disclaimer removed because hawk deemed there are no affiliate links on this page\">\n<p class=\"text-700 mb-2 text-[12px] leading-[18px] md:text-[13px] [&amp;&gt;a]:text-gray-700 [&amp;&gt;a]:underline\">\nWhen you purchase through links on our site, we may earn an affiliate commission. Here\u2019s how it works.\n<\/p>\n<\/aside>\n<\/header>\n<\/div>\n<\/div>\n<div data-widget-type=\"contentparsed\" id=\"content\" class=\"clear-both widget widget-contentparsed widget-content widget-contentparsed-content widget-content-parsed widget-content-parsed-content_document \">\n<div class=\"wcp-item-content\">\n<section class=\"content-wrapper\">\n<div class=\"box less-space hero-image-wrapper\">\n<figure class=\"mb-0\">\n<source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-1920-80.jpg.webp 1920w, https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-1200-80.jpg.webp 1200w, https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-1024-80.jpg.webp 1024w, https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-970-80.jpg.webp 970w, https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-480-80.jpg.webp 480w, https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-320-80.jpg.webp 320w\" sizes=\"(min-width: 1000px) 600px, calc(100vw - 40px)\" \/><figcaption class=\"mt-2\"><span class=\"credit\">(Image credit: Future)<\/span><\/figcaption><\/figure>\n<\/div>\n<div id=\"article-body\" class=\"text-copy bodyCopy auto paywall-locker\">\n<div data-analytics-id=\"utility-bar\" id=\"utility-bar\" class=\"font-ui-heading flex justify-between items-center py-2 border-t border-b border-gray-300 border-solid mb-5 mx-auto\" data-component-name=\"UtilityBar\" data-mrf-recirculation=\"utility-bar\">\n<div class=\"flex gap-2 text-[#333] subcontainer\">\n<div class=\"relative tooltip-container\" role=\"tooltip\">\n<div data-component-name=\"Social:Dropdown\" role=\"menu\" id=\"utilitybar__dropdown--share\" aria-labelledby=\"utilitybar__button--share\" class=\"absolute left-0 top-full w-44 bg-white rounded-md shadow-md border border-neutral-200 z-[9996] list-none m-0 py-2 px-3 border-solid\">\n<ul class=\"!m-0\">\n<li class=\"!p-0 !m-0 list-none border-b border-gray-200 border-solid\">\n<li class=\"!p-0 !m-0 list-none border-b border-gray-200 border-solid\">\n<p>Facebook<\/p>\n<\/li>\n<li class=\"!p-0 !m-0 list-none border-b border-gray-200 border-solid\">\n<p>X<\/p>\n<\/li>\n<li class=\"!p-0 !m-0 list-none border-b border-gray-200 border-solid\">\n<p>Pinterest<\/p>\n<\/li>\n<li class=\"!p-0 !m-0 list-none border-b border-gray-200 border-solid\">\n<p>Email<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<div class=\"font-ui-heading max-sm:hidden tooltip absolute left-1\/2 bg-gray-900 text-white text-xs leading-none px-3 py-1.5 rounded-md z-[10001] whitespace-nowrap\" id=\"tooltip-share-this-article\" role=\"tooltip\" aria-hidden=\"true\">\nShare this article\n<\/div>\n<\/div>\n<div class=\"relative tooltip-container\" role=\"tooltip\"><span class=\"ml-1 sm:ml-1.5 font-base text-xs\"><span class=\"font-normal\">0<\/span><\/span><\/p>\n<div class=\"font-ui-heading max-sm:hidden tooltip absolute left-1\/2 bg-gray-900 text-white text-xs leading-none px-3 py-1.5 rounded-md z-[10001] whitespace-nowrap\" id=\"tooltip-join-the-conversation\" role=\"tooltip\" aria-hidden=\"true\">\nJoin the conversation\n<\/div>\n<\/div>\n<\/div>\n<div class=\"flex gap-2 text-[#333] subcontainer\">\n<div class=\"relative tooltip-container\" role=\"tooltip\">\n<p>Follow us<\/p>\n<div class=\"font-ui-heading max-sm:hidden tooltip absolute left-1\/2 bg-gray-900 text-white text-xs leading-none px-3 py-1.5 rounded-md z-[10001] whitespace-nowrap\" id=\"tooltip-add-us-as-a-preferred-source-on-google\" role=\"tooltip\" aria-hidden=\"true\">\nAdd us as a preferred source on Google\n<\/div>\n<\/div>\n<div class=\"relative tooltip-container\" role=\"tooltip\">\n<div role=\"dialog\" class=\"hidden fixed inset-0 z-[999999999999999999] bg-[#33333370] flex items-center justify-center p-6 newsletter-modal\" data-batch-endpoint=\"https:\/\/newsletter-subscribe.futureplc.com\/v2\/submission\/submit_batch\" data-batch-source=\"302\" data-component-name=\"Newsletter:Modal\">\n<div class=\"bg-neutral-100 rounded-xl shadow-xl w-full lg:w-2\/3 xl:w-1\/2 p-6 relative max-h-[95vh] overflow-y-auto\">\n<div id=\"newsletter-capture-modal\">\n<div class=\"sm:text-xl text-base font-bold text-black mb-3 p-0 bg-inherit font-ui-heading\">Get The Leadout Newsletter<\/div>\n<p class=\"text-gray-600 mb-4 text-sm sm:text-base font-article-copy\">The latest race content, interviews, features, reviews and expert buying guides, direct to your inbox!<\/p>\n<div data-component-name=\"Newsletter:NewsletterForm\">\n<hr class=\"modal_hr mt-3 mb-4 h-px bg-gray-300 border-0\">\n<div class=\"modal_footer block text-left opacity-80 text-[.8em] leading-[1.3em] mt-2 [&amp;&gt;a]:underline font-article-copy\">\nBy submitting your information you agree to the Terms &amp; Conditions and Privacy Policy and are aged 16 or over.\n<\/div>\n<\/div>\n<\/div>\n<div id=\"newsletter-modal-confirmation\" class=\"hidden\">\n<p class=\"sm:text-xl text-base font-bold text-black mb-3 p-0\">You are now subscribed<\/p>\n<p class=\"text-gray-600 mb-4 text-sm sm:text-base\">Your newsletter sign-up was successful<\/p>\n<div id=\"newsletter-modal-confirmation__userlogin\" class=\"hidden\">\n<hr class=\"my-5 h-px bg-gray-300 border-0\">\n<div class=\"items-start flex flex-col h-full justify-between\">\n<div class=\"flcw-text pb-5 pt-2 leading-[1.3]\"> An account already exists for this email address, please log in.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"font-ui-heading max-sm:hidden tooltip absolute left-1\/2 bg-gray-900 text-white text-xs leading-none px-3 py-1.5 rounded-md z-[10001] whitespace-nowrap\" id=\"tooltip-subscribe-to-our-newsletter\" role=\"tooltip\" aria-hidden=\"true\">\nSubscribe to our newsletter\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p id=\"2b4509ff-8dea-4ba8-b3bf-f2ee3a9bb93a\">Pirelli has launched the brand new P Zero Race SL-R tyre today, which it claims is the ultimate road racing tyre, offering best-in-class aerodynamics, along with low rolling resistance, grip, handling and comfort.<\/p>\n<p>Along with these big claims, the brand claims a 2-watt normalised aero gain at 45km\/h has been achieved relative to its P Zero Race RS &#8211; the brand&#8217;s current flagship road tyre.<\/p>\n<p id=\"2b4509ff-8dea-4ba8-b3bf-f2ee3a9bb93a-2\" class=\"paywall\" aria-hidden=\"true\">The eagle-eyed out there may have spotted pro riders racing on Pirelli tyres marked &#8216;Prototype&#8217; for quite a while now, and it appears the time is now right for Pirelli to officially reveal what these new tyres are.<\/p>\n<p><span class=\"article-continues-below block py-2 text-sm\">Article continues below <\/span><\/p>\n<aside data-component-name=\"Recirculation:ArticleRiver\" data-recirculation-type=\"inline\" data-mrf-recirculation=\"Trending Bar\" data-nosnippet class=\"clear-both pb-0 pt-2 mb-4\"><span class=\"\n            flex\n            after:content-[''] after:flex-1 after:ml-4 after:my-[0.7rem] after:border-t after:border-solid after:border-t-[#ccc]\n            before:content-[''] before:flex-1 before:mr-4 before:my-[0.7rem] before:border-t before:border-solid before:border-t-[#ccc]\n            font-article-heading pb-0 !text-base uppercase sm:text-sm font-bold\n        \"><br \/>\n            You may like<br \/>\n        <\/span><\/p>\n<ul class=\"flex flex-col gap-0 m-0\">\n<li class=\"m-0 list-none border-b border-solid border-[#ededed] py-2\" data-recirculation-id=\"recirculation-card-1\" data-analytics-id=\"recirculation-inline-1\" data-mrf-recirculation=\"recirculation-inline-1\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">Best road bike tyres 2026: Our experts&#8217; favourite tubeless and clincher tyres<\/span><\/li>\n<li class=\"m-0 list-none border-b border-solid border-[#ededed] py-2\" data-recirculation-id=\"recirculation-card-2\" data-analytics-id=\"recirculation-inline-2\" data-mrf-recirculation=\"recirculation-inline-2\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">Best tubeless road tyres 2026: Faster, more comfortable and less puncture-prone<\/span><\/li>\n<li class=\"m-0 list-none border-b border-solid border-[#ccc] py-2\" data-recirculation-id=\"recirculation-card-3\" data-analytics-id=\"recirculation-inline-3\" data-mrf-recirculation=\"recirculation-inline-3\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">We thought wider gravel tyres were always faster, but it&#8217;s not as simple as that: New aero and rolling resistance lab tests combined<\/span><\/li>\n<\/ul>\n<\/aside>\n<p class=\"paywall\" aria-hidden=\"true\">Pirelli has focused on the performance and aerodynamic drag of the wheel and tyre system overall. We recently caught up with Pirelli product manager Carlo Di Clemente to learn more.<\/p>\n<p class=\"paywall\" aria-hidden=\"true\">Di Clemente says that, although 80% of the drag when riding comes from the rider, of the residual 20%, up to 5% can come from the front wheel and tyre. This is increased by the trend to wider tyres on wide rims, which increases the frontal aero presented to the wind.<\/p>\n<p class=\"paywall\" aria-hidden=\"true\">It appears Pirelli has focused on this and sought to reduce flow separation at the interface between the front tyre and wheel rim and maximise the sailing effect to improve aerodynamic performance.<\/p>\n<p>The development of the P Zero Race SL-R drew on Pirelli\u2019s expertise in aerodynamics and CFD simulation and used tools from Pirelli\u2019s MotoGP and F1 divisions in an 18-month development programme.<\/p>\n<div id=\"slice-container-newsletterForm-articleInbodyContent-oEuUm7gkitzHSGLeSHUSjm\" class=\"slice-container newsletter-inbodyContent-slice newsletterForm-articleInbodyContent-oEuUm7gkitzHSGLeSHUSjm slice-container-newsletterForm\">\n<div data-hydrate=\"true\" class=\"newsletter-form__wrapper newsletter-form__wrapper--inbodyContent\">\n<div class=\"newsletter-form__container\">\n<section class=\"newsletter-form__top-bar\">\n<div class=\"newsletter-form__header\">Get The Leadout Newsletter<\/div>\n<\/section>\n<section class=\"newsletter-form__main-section\">\n<p class=\"newsletter-form__strapline\">The latest race content, interviews, features, reviews and expert buying guides, direct to your inbox!<\/p>\n<footer class=\"newsletter-form__footer \">By submitting your information you agree to the Terms &amp; Conditions and Privacy Policy and are aged 16 or over.<\/footer>\n<\/section>\n<\/div>\n<\/div>\n<\/div>\n<p>Over 14 iterations, analysis included a range of proprietary techniques such as unsteady flow simulations borrowed from Pirelli\u2019s other divisions.<\/p>\n<p>Pirelli also took the tyres to four different wind tunnels over eight testing sessions. Di Clemente says that although the results for different wind tunnels weren\u2019t precisely the same, they were consistent.<\/p>\n<h2 id=\"patented-paas-technology-3\">Patented PAAS technology<\/h2>\n<figure class=\"van-image-figure inline-layout\" data-bordeaux-image-check id=\"32d7afad-d862-4afe-ae80-6b044aa0f405\">\n<div class=\"image-full-width-wrapper\">\n<div class=\"image-widthsetter\">\n<p class=\"vanilla-image-block\">\n<source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-1200-80.jpg.webp 1200w, https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-1024-80.jpg.webp 1024w, https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-970-80.jpg.webp 970w, https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-480-80.jpg.webp 480w, https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-320-80.jpg.webp 320w\" sizes=\"(min-width: 1000px) 970px, calc(100vw - 40px)\" \/><\/p>\n<\/div>\n<\/div><figcaption class=\" inline-layout\"><span class=\"caption-text\">Pirelli took its prototype tyre to four different wind tunnels to confirm its results <\/span><span class=\"credit\">(Image credit: Pirelli)<\/span><\/figcaption><\/figure>\n<p id=\"c16139e3-e8db-4392-a94a-f7cf1e406299\">Previously, brands have made tyres more aero by utilising features such as the vortex generators used in the Continental Aero 111 tyre and the new Cadex Aero tyre. Others, such as the previous generation Cadex aero tyre, have a narrow and tall section. Another option is to use a tyre that\u2019s narrower than the rim to reduce frontal area, a design which can be observed on Roval Rapide front wheels.<\/p>\n<aside data-component-name=\"Recirculation:ArticleRiver\" data-recirculation-type=\"inline\" data-mrf-recirculation=\"Trending Bar\" data-nosnippet class=\"clear-both pb-0 pt-2 mb-4\"><span class=\"\n            flex\n            after:content-[''] after:flex-1 after:ml-4 after:my-[0.7rem] after:border-t after:border-solid after:border-t-[#ccc]\n            before:content-[''] before:flex-1 before:mr-4 before:my-[0.7rem] before:border-t before:border-solid before:border-t-[#ccc]\n            font-article-heading pb-0 !text-base uppercase sm:text-sm font-bold\n        \"><br \/>\n            What to read next<br \/>\n        <\/span><\/p>\n<ul class=\"flex flex-col gap-0 m-0\">\n<li class=\"m-0 list-none border-b border-solid border-[#ededed] py-2\" data-recirculation-id=\"recirculation-card-1\" data-analytics-id=\"recirculation-2-inline-1\" data-mrf-recirculation=\"recirculation-2-inline-1\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">After nine months of teasing, Specialized finally launches new tubeless cotton tyres<\/span><\/li>\n<li class=\"m-0 list-none border-b border-solid border-[#ededed] py-2\" data-recirculation-id=\"recirculation-card-2\" data-analytics-id=\"recirculation-2-inline-2\" data-mrf-recirculation=\"recirculation-2-inline-2\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">&#8216;A component that&#8217;s poorly understood&#8217; \u2013 Are tyres the next marginal gain for Dan Bigham at Red Bull-Bora-Hansgrohe?<\/span><\/li>\n<li class=\"m-0 list-none border-b border-solid border-[#ccc] py-2\" data-recirculation-id=\"recirculation-card-3\" data-analytics-id=\"recirculation-2-inline-3\" data-mrf-recirculation=\"recirculation-2-inline-3\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">32-inch gravel wheels, aero tyres and more: Six tech highlights from the Cycling World Europe show<\/span><\/li>\n<\/ul>\n<\/aside>\n<p>Di Clemente claims that these approaches have their deficiencies. Vortex generators work better at high yaw angles but may increase drag at low yaw angles, while a pointy tyre can impact handling, and both can increase rolling resistance. Meanwhile, a narrower tyre has to be run at higher pressure, which can result in the by now well-known impacts on rolling resistance and comfort.<\/p>\n<p>In contrast, the P Zero Race SL-R has a standard profile and a slick tread. Its aero performance instead comes from its patented PAAS technology. This adds rubber at the tyre\u2019s side, increasing the tyre\u2019s width in the space above the rim, helping to smooth the tyre-to-rim interface.<\/p>\n<p>Signifying Pirelli Advanced Aerodynamic System, PAAS results from Pirelli\u2019s research finding that there\u2019s a specific positioning of the tyre\u2019s widest point relative to the tyre\u2019s height, when mounted on the rim, which provides optimal aerodynamic performance.<\/p>\n<p>As such, the PAAS profile is tyre-width specific, although the effect is seen across a range of rim profiles and yaw angles, particularly at higher yaw. Pirelli says that PAAS continues to be effective even as the tyre tread wears.<\/p>\n<p>It\u2019s similar to how Trek tried to smooth the airflow between the tyre and rim with its Bontrager R4 320 tyre, which was launched over a decade ago. However, Di Clemente says that Pirelli\u2019s approach still allows the tyre to be mounted and removed easily. Interestingly, he claims that the small groove around the edge of the tyre above the rim doesn\u2019t affect the new tyre\u2019s aerodynamics.<\/p>\n<p>Pirelli found that the width of the PAAS layer needed to vary by tyre width, so the brand will be launching the P Zero Race SL-R in just 28mm and 30mm widths, with a larger 32mm size scheduled to follow in October. The 28mm tyre has a 275g claimed weight, 15g less than the P Zero Race RS, although we weighed a pair at 286g and 288g.<\/p>\n<h2 id=\"2-watts-faster-than-the-p-zero-race-rs-3\">2 watts faster than the P Zero Race RS<\/h2>\n<figure class=\"van-image-figure inline-layout\" data-bordeaux-image-check id=\"07b3f9ad-374f-4f9f-af59-4790b51b02b2\">\n<div class=\"image-full-width-wrapper\">\n<div class=\"image-widthsetter\">\n<p class=\"vanilla-image-block\">\n<source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-813-80.jpg.webp 1200w, https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-813-80.jpg.webp 1024w, https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-813-80.jpg.webp 970w, https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-480-80.jpg.webp 480w, https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-320-80.jpg.webp 320w\" sizes=\"(min-width: 1000px) 970px, calc(100vw - 40px)\" \/><\/p>\n<\/div>\n<\/div><figcaption class=\" inline-layout\"><span class=\"caption-text\">Pirelli&#8217;s results show a marked decrease in drag at high yaw angles versus the P Zero Race RS <\/span><span class=\"credit\">(Image credit: Pirelli)<\/span><\/figcaption><\/figure>\n<p id=\"800b5ee4-8eb8-443e-939f-7905a6a03ea5\">As well as multiple wind tunnel runs, Pirelli tested its new tyre on four different rims, including hooked and hookless designs and popular models from Zipp and DT Swiss.<\/p>\n<p>We asked for a little more information on the brand&#8217;s wind tunnel testing procedures and learned that a 60mm deep, hooked wheel was tested, which had a 23mm internal width. 28mm tyres were tested at an airspeed of 45km\/h.<\/p>\n<p>Overall, the brand&#8217;s wind tunnel testing shows a 2-watt aero gain in weighted average drag over the P Zero Race RS, normalised over yaw angles of up to 20 degrees at lower speeds. In a high wind test, this increased to 5 watts, due to a greater sailing effect at higher yaw angles.<\/p>\n<p>At a high yaw angle of 15 to 20 degrees, Pirelli claims it found a huge 15-watt saving versus the P Zero Race RS 28mm tyre in a single measurement point. Di Clemente says that this is likely due to the absence of a tread pattern on the new tyre, as Pirelli found that adding a grooved tread, which the P Zero Race RS has, impacted aerodynamics.<\/p>\n<p>The 15-watt figure is an edge case and peculiar to Pirelli\u2019s tyres; the energy saving is less marked, but still significant, relative to competitors\u2019 tyres it also tested at lower yaw angles. Overall, the key takeaway is roughly a 2-watt claimed saving over the previous Pirelli range topper; it&#8217;s unrealistic to expect huge 15-odd-watt real-world savings just by switching tyres.<\/p>\n<p>In its quest for aero optimisation, Pirelli has also reduced the font size of the embossed tyre info, which is mandated for all tyres, to the permitted minimum to avoid aerodynamic interference.<\/p>\n<h2 id=\"10-lower-rolling-resistance-3\">10% lower rolling resistance<\/h2>\n<figure class=\"van-image-figure inline-layout\" data-bordeaux-image-check id=\"43a95640-bfa9-42f1-832c-d9bbbb39940a\">\n<div class=\"image-full-width-wrapper\">\n<div class=\"image-widthsetter\">\n<p class=\"vanilla-image-block\">\n<source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-1200-80.jpg.webp 1200w, https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-1024-80.jpg.webp 1024w, https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-970-80.jpg.webp 970w, https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-480-80.jpg.webp 480w, https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-320-80.jpg.webp 320w\" sizes=\"(min-width: 1000px) 970px, calc(100vw - 40px)\" \/><\/p>\n<\/div>\n<\/div><figcaption class=\" inline-layout\"><span class=\"caption-text\">Pirelli says that the shape of the tyre improves its aerodynamics and that the small discontinuity between the tyre and rim doesn&#8217;t impact the result <\/span><span class=\"credit\">(Image credit: Pirelli)<\/span><\/figcaption><\/figure>\n<p id=\"03909064-0961-451a-b64a-b407fb27334f\">Turning to rolling resistance, Pirelli uses the same Smart Evo 2 rubber compound in its P Zero Race SL-R, derived from its motorsport tyres, as in its P Zero Race RS tyre, which came out mid-pack in our CN Labs own rolling resistance tests of 24 tyres.<\/p>\n<p>Nevertheless, it says that there\u2019s a 10% decrease in rolling resistance, amounting to 2 watts saved per pair of tyres, due to its new LiteCore 120 TPI tubeless-ready casing.<\/p>\n<p>The lighter casing is claimed to be more supple, increasing ride comfort and grip, as well as lowering weight.<\/p>\n<p>Despite a lighter casing, there\u2019s still a puncture protection belt built into the tyre, and Di Clemente says that the mileage you can expect is the same as for the P Zero Race RS tyre.<\/p>\n<p>Pirelli is also likely to launch a time trial version in future, Di Clemente states.<\/p>\n<p>The P Zero Race SL-R is also the first tyre in the P Zero range not to be sold in 26mm width. It\u2019s already been used in the pro ranks and has ridden to two stage wins and the points classification in the 2026 AlUla Tour, as well as Stage 7 of Tirreno-Adriatico, by Lidl-Trek\u2019s Jonathan Milan. Matheu van der Poel himself also appeared to be using the tyres at Milan-San Remo.<\/p>\n<h2 id=\"mounting-and-first-ride-impressions-3\">Mounting and first ride impressions<\/h2>\n<figure class=\"van-image-figure inline-layout\" data-bordeaux-image-check id=\"727985dd-c943-428c-bad3-e42844ba2843\">\n<div class=\"image-full-width-wrapper\">\n<div class=\"image-widthsetter\">\n<p class=\"vanilla-image-block\">\n<source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-1200-80.jpg.webp 1200w, https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-1024-80.jpg.webp 1024w, https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-970-80.jpg.webp 970w, https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-480-80.jpg.webp 480w, https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-320-80.jpg.webp 320w\" sizes=\"(min-width: 1000px) 970px, calc(100vw - 40px)\" \/><\/p>\n<\/div>\n<\/div><figcaption class=\" inline-layout\"><span class=\"caption-text\">The 28mm tyre inflated on a tubeless rim with just a track pump <\/span><span class=\"credit\">(Image credit: Future)<\/span><\/figcaption><\/figure>\n<p id=\"c52ebf37-3d55-4634-8797-119b89773d6f\">As with many tubeless tyres, mounting the P Zero Race SL-R tyres was a bit of an ordeal. But once on the rim, I seated both tyres first time with just a track pump, and they held air immediately. On a 19mm hooked rim, they measured exactly 28mm.<\/p>\n<p>A ride of a couple of hours suggested that they provide good comfort on typical UK road surfaces, and they felt as if they rode performance tyre fast, even if I had no basis to assess the aero claims.<\/p>\n<h2 id=\"pirelli-p-zero-race-sl-r-prices-3\">Pirelli P Zero Race SL-R prices <\/h2>\n<p id=\"046dab9b-9b78-487d-b1fd-d759e05ab6b3\">Both the 28mm and 30mm width of the Pirelli P Zero Race SL-R tyre are priced at \u00a394.99 in the UK, or \u00a399.99 for the Team Issue tyre with yellow logos, as ridden by Mathieu van der Poel.<\/p>\n<p>In Europe, both the standard and Team Issue tyres cost \u20ac99.99.<\/p>\n<\/div>\n<div class=\"block\" id=\"articleTag\" data-component-name=\"PostArticleLinks\" data-nosnippet data-mrf-recirculation=\"post-article-links\">\n<div class=\"border-b border-b-black border-solid py-2.5 text-black font-bold uppercase\">TOPICS<\/div>\n<nav class=\"py-2.5 flex gap-2.5 flex-wrap\" data-analytics-id=\"article-tag\" data-mrf-recirculation=\"article-tag\">\n<p>Tech<\/p>\n<\/nav>\n<\/div>\n<div id=\"slice-container-authorBio-oEuUm7gkitzHSGLeSHUSjm\" class=\"slice-container slice-author-bio authorBio-oEuUm7gkitzHSGLeSHUSjm slice-container-authorBio\">\n<div class=\"author author__default-layout author--separator author--collapsible\" data-hydrate=\"true\">\n<div class=\"author__header\">\n<div class=\"author__heading\">\n<div class=\"author__name\">Paul Norman<\/div>\n<\/div>\n<\/div>\n<div class=\"author__bio-wrapper\">\n<div class=\"author__biography\">\n<p>Paul has been on two wheels since he was in his teens and he&#8217;s spent much of the time since writing about bikes and the associated tech. He&#8217;s a road cyclist at heart but his adventurous curiosity means Paul has been riding gravel since well before it was cool, adapting his cyclo-cross bike to ride all-day off-road epics and putting road kit to the ultimate test along the way.\u00a0Paul has contributed to Cyclingnews&#8217; tech coverage for a few years, helping to maintain the freshness of our buying guides and deals content, as well as writing a number of our voucher code pages.\u00a0<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<div class=\"mt-6 lg:px-0 relative max-w-[1070px] mx-auto viafoura-twig-component px-4\" data-component-name=\"Viafoura:Comments\" data-nosnippet data-community-guidelines-text=\"&lt;p class='vfcustom-community-guidelines'&gt;Please follow our &lt;a href=&quot;https:\/\/www.cyclingnews.com\/about\/#section-community-guidelines&quot; target=&quot;_blank&quot;&gt;community guidelines&lt;\/a&gt;.&lt;\/p&gt;\" data-join-the-conversation-text=\"Join the Conversation\">\n<div class=\"absolute top-0 left-0 w-full h-full flex items-center justify-center z-50 bg-white\/90 border-1\">\n<div class=\"p-2 text-center\">\n<p class=\"mb-3 !text-lg\">You must confirm your public display name before commenting<\/p>\n<p class=\"mb-3 !text-sm\">Please logout and then login again, you will then be prompted to enter your display name.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<section class=\"mx-2 my-5 sm:mx-0\">\n<aside class=\"w-full\" data-nosnippet data-mrf-recirculation=\"article-river-stacked\">\n<div data-recirc-id=\"article-river-stacked-adviser:hybrid\">\n<div class=\"text-white py-4 px-3 mb-4 bg-[#333] uppercase font-bold custom-header-styles\">Read more<\/div>\n<div class=\"grid grid-cols-1 gap-4 mt-4 mb-5\">\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Best road bike tyres 2026: Our experts&#8217; favourite tubeless and clincher tyres<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Best tubeless road tyres 2026: Faster, more comfortable and less puncture-prone<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">We thought wider gravel tyres were always faster, but it&#8217;s not as simple as that: New aero and rolling resistance lab tests combined<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Cycling Tech &amp; Components<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">After nine months of teasing, Specialized finally launches new tubeless cotton tyres<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Cycling Tech &amp; Components<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">&#8216;A component that&#8217;s poorly understood&#8217; \u2013 Are tyres the next marginal gain for Dan Bigham at Red Bull-Bora-Hansgrohe?<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Cycling Tech &amp; Components<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">32-inch gravel wheels, aero tyres and more: Six tech highlights from the Cycling World Europe show<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/aside>\n<aside class=\"w-full\" data-nosnippet data-mrf-recirculation=\"article-river-stacked\">\n<div data-recirc-id=\"article-river-stacked-solr:latest-category\">\n<div class=\"text-white py-4 px-3 mb-4 bg-[#333] uppercase font-bold custom-header-styles\">Latest in Wheels &amp; Tyres<\/div>\n<div class=\"grid grid-cols-1 gap-4 mt-4 mb-5\">\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/v47Gx7qEYJFZwr9LWENh7g-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/v47Gx7qEYJFZwr9LWENh7g-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/v47Gx7qEYJFZwr9LWENh7g-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/v47Gx7qEYJFZwr9LWENh7g-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/v47Gx7qEYJFZwr9LWENh7g-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">The Hunt Spring Sale drops huge discounts of up to 40% on some of our favourite road and gravel wheelsets just in time for summer<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/qxvrZafZvA8FvqdRaBhTCV-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/qxvrZafZvA8FvqdRaBhTCV-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/qxvrZafZvA8FvqdRaBhTCV-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/qxvrZafZvA8FvqdRaBhTCV-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/qxvrZafZvA8FvqdRaBhTCV-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Tadej Poga\u010dar&#8217;s Enve wheels are too deep for the new UCI rules, so how did he get away with using them at Strade Bianche?<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/qmDJsDuK9F9x9mQ2MBh8kU-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/qmDJsDuK9F9x9mQ2MBh8kU-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/qmDJsDuK9F9x9mQ2MBh8kU-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/qmDJsDuK9F9x9mQ2MBh8kU-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/qmDJsDuK9F9x9mQ2MBh8kU-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Continental&#8217;s new Terra Competition gravel tyre looks to offer true mixed surface performance and an aero advantage too<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">We thought wider gravel tyres were always faster, but it&#8217;s not as simple as that: New aero and rolling resistance lab tests combined<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/kAJaUXVoS3a8Li2rfMGnVS-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/kAJaUXVoS3a8Li2rfMGnVS-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/kAJaUXVoS3a8Li2rfMGnVS-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/kAJaUXVoS3a8Li2rfMGnVS-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/kAJaUXVoS3a8Li2rfMGnVS-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">The UCI&#8217;s wheel depth rule is pointless, and our testing data shows why<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/LkyJ3SAHbpgqjKTC8tyyMj-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/LkyJ3SAHbpgqjKTC8tyyMj-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/LkyJ3SAHbpgqjKTC8tyyMj-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/LkyJ3SAHbpgqjKTC8tyyMj-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/LkyJ3SAHbpgqjKTC8tyyMj-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Wheels &amp; Tyres<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Vittoria Terreno T90 review: Monstrous levels of grip from Vittoria&#8217;s most aggressive gravel tyre<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/aside>\n<aside class=\"w-full\" data-nosnippet data-mrf-recirculation=\"article-river-stacked\">\n<div data-recirc-id=\"article-river-stacked-solr:latest-articletype\">\n<div class=\"text-white py-4 px-3 mb-4 bg-[#333] uppercase font-bold custom-header-styles\">Latest in News<\/div>\n<div class=\"grid grid-cols-1 gap-4 mt-4 mb-5\">\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/nzyms38B5JYoedxhBm7Lnn-840-80.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/nzyms38B5JYoedxhBm7Lnn-650-80.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/nzyms38B5JYoedxhBm7Lnn-500-80.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/nzyms38B5JYoedxhBm7Lnn-450-80.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/nzyms38B5JYoedxhBm7Lnn-320-80.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Training<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Zwift goes outdoors with new Recommendation feature, plus &#8216;Level 100&#8217; limit removed in latest round of updates<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/GxxFuugkKDWfxEYAKmm56a-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/GxxFuugkKDWfxEYAKmm56a-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/GxxFuugkKDWfxEYAKmm56a-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/GxxFuugkKDWfxEYAKmm56a-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/GxxFuugkKDWfxEYAKmm56a-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Doping<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Italian racer provisionally suspended following Enobosarm positive at UAE Tour Women<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/Jkk9xfYrDFcm8tKjEx2pDa-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/Jkk9xfYrDFcm8tKjEx2pDa-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/Jkk9xfYrDFcm8tKjEx2pDa-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/Jkk9xfYrDFcm8tKjEx2pDa-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/Jkk9xfYrDFcm8tKjEx2pDa-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Women&#8217;s cycling (races)<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Breathing support and extended hospital stay required as Debora Silvestri continues recovery from Milan-San Remo crash<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/p4kUxfPHKdVsk8AM95SafR-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/p4kUxfPHKdVsk8AM95SafR-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/p4kUxfPHKdVsk8AM95SafR-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/p4kUxfPHKdVsk8AM95SafR-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/p4kUxfPHKdVsk8AM95SafR-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Streaming<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">Exclusive Deal: Grab a free $50 Amazon Gift Card + up to 77% off NordVPN and watch Tour of Flanders, Paris-Roubaix, and Tour de France from anywhere in the world<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/pGdHsEBn7yJPNpHhW884TA-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/pGdHsEBn7yJPNpHhW884TA-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/pGdHsEBn7yJPNpHhW884TA-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/pGdHsEBn7yJPNpHhW884TA-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/pGdHsEBn7yJPNpHhW884TA-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Pro Bikes<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">&#8216;If he&#8217;d known what condition the bike was in, he wouldn&#8217;t have been descending like that&#8217; \u2013 Tadej Poga\u010dar won Milan-San Remo on a cracked frame with disc brake rub<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br \/>\u00a0<\/span><\/span><\/div>\n<\/div>\n<div>\n<div class=\"aspect-[--img-listing-aspect-ratio,16\/9] relative mb-3.5\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/KD4KuUX95QPdB7osXmDvhK-840-80.jpg.webp 840w, https:\/\/cdn.mos.cms.futurecdn.net\/KD4KuUX95QPdB7osXmDvhK-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/KD4KuUX95QPdB7osXmDvhK-500-80.jpg.webp 500w, https:\/\/cdn.mos.cms.futurecdn.net\/KD4KuUX95QPdB7osXmDvhK-450-80.jpg.webp 450w, https:\/\/cdn.mos.cms.futurecdn.net\/KD4KuUX95QPdB7osXmDvhK-320-80.jpg.webp 320w\" sizes=\"(min-width: 900px) 925px, (min-width: 700px) 450px, calc(100vw - 48px)\" \/><\/div>\n<p><span class=\"custom-subheading-styles\">Teams &amp; Riders<\/span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block custom-text-styles\">New part-time employment for Chris Froome but cycling career remains officially on hold for now<\/span><\/div>\n<div class=\"relative recirc-feed sponsored-card min-h-[250px]\" data-recirc-id=\"article-river-stacked-ads:native-cards\" data-mrf-recirculation=\"article-river-ads\" data-nosnippet data-ad-slot-path=\"feed-sponsored-post\" data-attribute-device=\"all\">\n<div class=\"sponsored-post--placeholder max-w-full animate-pulse\"><span><span class=\"text-base text-black font-bold mx-0 my-2.5 p-0 block bg-gray-100\">\u00a0<br 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data-component-name=\"Article:Hero\">\n<nav class=\"breadcrumb\" aria-label=\"Breadcrumbs\">\n<ol>\n<li>\nCycling Tech &amp; Components\n<\/li>\n<li>\nWheels &amp; Tyres\n<\/li>\n<\/ol>\n<\/nav>\n<h1>Pirelli boasts new aerodynamic trick with its new P-Zero SL-R race tyre<\/h1>\n<div class=\"byline-social\">\n<div class=\"byline\">\nNews<\/p>\n<div class=\"text-[13px]\"><span><br \/>\nBy<br \/>\nPaul Norman <\/span><span><br \/>\npublished<br \/>\n<time data-component-name=\"UI:DateTime\" datetime=\"2026-03-24T13:30:58Z\" class=\"relative-date\"><br \/>\n24 March 2026<br \/>\n<\/time><\/span><\/div>\n<\/div>\n<p class=\"strapline\">The new Pirelli tyres focus on improving the relationship between tyres and wheel rims to boost aero performance <\/p>\n<\/div>\n<aside class=\"mx-auto mb-4 flex items-center justify-start mx-0 my-5 p-0\" id=\"affiliate-disclaimer\" data-component-name=\"AffiliateDisclaimer\" data-hawk-message=\"Affiliate disclaimer removed because hawk deemed there are no 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Here\u2019s how it works.\n<\/p>\n<\/aside>\n<\/header>\n<\/div>\n<div id=\"article-body\" class=\"text-copy bodyCopy auto paywall-locker\">\n<div data-analytics-id=\"utility-bar\" id=\"utility-bar\" class=\"font-ui-heading flex justify-between items-center py-2 border-t border-b border-gray-300 border-solid mb-5 mx-auto\" data-component-name=\"UtilityBar\" data-mrf-recirculation=\"utility-bar\">\n<div class=\"flex gap-2 text-[#333] subcontainer\">\n<div class=\"relative tooltip-container\" role=\"tooltip\">\n<div data-component-name=\"Social:Dropdown\" role=\"menu\" id=\"utilitybar__dropdown--share\" aria-labelledby=\"utilitybar__button--share\" class=\"absolute left-0 top-full w-44 bg-white rounded-md shadow-md border border-neutral-200 z-[9996] list-none m-0 py-2 px-3 border-solid\">\n<ul class=\"!m-0\">\n<li class=\"!p-0 !m-0 list-none border-b border-gray-200 border-solid\">\n<li class=\"!p-0 !m-0 list-none border-b border-gray-200 border-solid\">\n<p>Facebook<\/p>\n<\/li>\n<li class=\"!p-0 !m-0 list-none border-b border-gray-200 border-solid\">\n<p>X<\/p>\n<\/li>\n<li class=\"!p-0 !m-0 list-none border-b border-gray-200 border-solid\">\n<p>Pinterest<\/p>\n<\/li>\n<li class=\"!p-0 !m-0 list-none border-b border-gray-200 border-solid\">\n<p>Email<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<div class=\"font-ui-heading max-sm:hidden tooltip absolute left-1\/2 bg-gray-900 text-white text-xs leading-none px-3 py-1.5 rounded-md z-[10001] whitespace-nowrap\" id=\"tooltip-share-this-article\" role=\"tooltip\" aria-hidden=\"true\">\nShare this article\n<\/div>\n<\/div>\n<div class=\"relative tooltip-container\" role=\"tooltip\"><span class=\"ml-1 sm:ml-1.5 font-base text-xs\"><span class=\"font-normal\">0<\/span><\/span><\/p>\n<div class=\"font-ui-heading max-sm:hidden tooltip absolute left-1\/2 bg-gray-900 text-white text-xs leading-none px-3 py-1.5 rounded-md z-[10001] whitespace-nowrap\" id=\"tooltip-join-the-conversation\" role=\"tooltip\" aria-hidden=\"true\">\nJoin the conversation\n<\/div>\n<\/div>\n<\/div>\n<div class=\"flex gap-2 text-[#333] subcontainer\">\n<div class=\"relative tooltip-container\" role=\"tooltip\">\n<p>Follow us<\/p>\n<div class=\"font-ui-heading max-sm:hidden tooltip absolute left-1\/2 bg-gray-900 text-white text-xs leading-none px-3 py-1.5 rounded-md z-[10001] whitespace-nowrap\" id=\"tooltip-add-us-as-a-preferred-source-on-google\" role=\"tooltip\" aria-hidden=\"true\">\nAdd us as a preferred source on Google\n<\/div>\n<\/div>\n<div class=\"relative tooltip-container\" role=\"tooltip\">\n<div role=\"dialog\" class=\"hidden fixed inset-0 z-[999999999999999999] bg-[#33333370] flex items-center justify-center p-6 newsletter-modal\" data-batch-endpoint=\"https:\/\/newsletter-subscribe.futureplc.com\/v2\/submission\/submit_batch\" data-batch-source=\"302\" data-component-name=\"Newsletter:Modal\">\n<div class=\"bg-neutral-100 rounded-xl shadow-xl w-full lg:w-2\/3 xl:w-1\/2 p-6 relative max-h-[95vh] overflow-y-auto\">\n<div id=\"newsletter-capture-modal\">\n<div class=\"sm:text-xl text-base font-bold text-black mb-3 p-0 bg-inherit font-ui-heading\">Get The Leadout Newsletter<\/div>\n<p class=\"text-gray-600 mb-4 text-sm sm:text-base font-article-copy\">The latest race content, interviews, features, reviews and expert buying guides, direct to your inbox!<\/p>\n<div data-component-name=\"Newsletter:NewsletterForm\">\n<hr class=\"modal_hr mt-3 mb-4 h-px bg-gray-300 border-0\">\n<div class=\"modal_footer block text-left opacity-80 text-[.8em] leading-[1.3em] mt-2 [&amp;&gt;a]:underline font-article-copy\">\nBy submitting your information you agree to the Terms &amp; Conditions and Privacy Policy and are aged 16 or over.\n<\/div>\n<\/div>\n<\/div>\n<div id=\"newsletter-modal-confirmation\" class=\"hidden\">\n<p class=\"sm:text-xl text-base font-bold text-black mb-3 p-0\">You are now subscribed<\/p>\n<p class=\"text-gray-600 mb-4 text-sm sm:text-base\">Your newsletter sign-up was successful<\/p>\n<div id=\"newsletter-modal-confirmation__userlogin\" class=\"hidden\">\n<hr class=\"my-5 h-px bg-gray-300 border-0\">\n<div class=\"items-start flex flex-col h-full justify-between\">\n<div class=\"flcw-text pb-5 pt-2 leading-[1.3]\"> An account already exists for this email address, please log in.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"font-ui-heading max-sm:hidden tooltip absolute left-1\/2 bg-gray-900 text-white text-xs leading-none px-3 py-1.5 rounded-md z-[10001] whitespace-nowrap\" id=\"tooltip-subscribe-to-our-newsletter\" role=\"tooltip\" aria-hidden=\"true\">\nSubscribe to our newsletter\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p id=\"2b4509ff-8dea-4ba8-b3bf-f2ee3a9bb93a\">Pirelli has launched the brand new P Zero Race SL-R tyre today, which it claims is the ultimate road racing tyre, offering best-in-class aerodynamics, along with low rolling resistance, grip, handling and comfort.<\/p>\n<p>Along with these big claims, the brand claims a 2-watt normalised aero gain at 45km\/h has been achieved relative to its P Zero Race RS &#8211; the brand&#8217;s current flagship road tyre.<\/p>\n<p id=\"2b4509ff-8dea-4ba8-b3bf-f2ee3a9bb93a-2\" class=\"paywall\" aria-hidden=\"true\">The eagle-eyed out there may have spotted pro riders racing on Pirelli tyres marked &#8216;Prototype&#8217; for quite a while now, and it appears the time is now right for Pirelli to officially reveal what these new tyres are.<\/p>\n<p><span class=\"article-continues-below block py-2 text-sm\">Article continues below <\/span><\/p>\n<aside data-component-name=\"Recirculation:ArticleRiver\" data-recirculation-type=\"inline\" data-mrf-recirculation=\"Trending Bar\" data-nosnippet class=\"clear-both pb-0 pt-2 mb-4\"><span class=\"\n            flex\n            after:content-[''] after:flex-1 after:ml-4 after:my-[0.7rem] after:border-t after:border-solid after:border-t-[#ccc]\n            before:content-[''] before:flex-1 before:mr-4 before:my-[0.7rem] before:border-t before:border-solid before:border-t-[#ccc]\n            font-article-heading pb-0 !text-base uppercase sm:text-sm font-bold\n        \"><br \/>\n            You may like<br \/>\n        <\/span><\/p>\n<ul class=\"flex flex-col gap-0 m-0\">\n<li class=\"m-0 list-none border-b border-solid border-[#ededed] py-2\" data-recirculation-id=\"recirculation-card-1\" data-analytics-id=\"recirculation-inline-1\" data-mrf-recirculation=\"recirculation-inline-1\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/cxboC9JeMDMGxqFayE38bJ-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">Best road bike tyres 2026: Our experts&#8217; favourite tubeless and clincher tyres<\/span><\/li>\n<li class=\"m-0 list-none border-b border-solid border-[#ededed] py-2\" data-recirculation-id=\"recirculation-card-2\" data-analytics-id=\"recirculation-inline-2\" data-mrf-recirculation=\"recirculation-inline-2\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/mzMM8NgBbWuroaMdJe4Nt8-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">Best tubeless road tyres 2026: Faster, more comfortable and less puncture-prone<\/span><\/li>\n<li class=\"m-0 list-none border-b border-solid border-[#ccc] py-2\" data-recirculation-id=\"recirculation-card-3\" data-analytics-id=\"recirculation-inline-3\" data-mrf-recirculation=\"recirculation-inline-3\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/JesKwjETMcECAuRQNmLZC4-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">We thought wider gravel tyres were always faster, but it&#8217;s not as simple as that: New aero and rolling resistance lab tests combined<\/span><\/li>\n<\/ul>\n<\/aside>\n<p class=\"paywall\" aria-hidden=\"true\">Pirelli has focused on the performance and aerodynamic drag of the wheel and tyre system overall. We recently caught up with Pirelli product manager Carlo Di Clemente to learn more.<\/p>\n<p class=\"paywall\" aria-hidden=\"true\">Di Clemente says that, although 80% of the drag when riding comes from the rider, of the residual 20%, up to 5% can come from the front wheel and tyre. This is increased by the trend to wider tyres on wide rims, which increases the frontal aero presented to the wind.<\/p>\n<p class=\"paywall\" aria-hidden=\"true\">It appears Pirelli has focused on this and sought to reduce flow separation at the interface between the front tyre and wheel rim and maximise the sailing effect to improve aerodynamic performance.<\/p>\n<p>The development of the P Zero Race SL-R drew on Pirelli\u2019s expertise in aerodynamics and CFD simulation and used tools from Pirelli\u2019s MotoGP and F1 divisions in an 18-month development programme.<\/p>\n<div id=\"slice-container-newsletterForm-articleInbodyContent-oEuUm7gkitzHSGLeSHUSjm\" class=\"slice-container newsletter-inbodyContent-slice newsletterForm-articleInbodyContent-oEuUm7gkitzHSGLeSHUSjm slice-container-newsletterForm\">\n<div data-hydrate=\"true\" class=\"newsletter-form__wrapper newsletter-form__wrapper--inbodyContent\">\n<div class=\"newsletter-form__container\">\n<section class=\"newsletter-form__top-bar\">\n<div class=\"newsletter-form__header\">Get The Leadout Newsletter<\/div>\n<\/section>\n<section class=\"newsletter-form__main-section\">\n<p class=\"newsletter-form__strapline\">The latest race content, interviews, features, reviews and expert buying guides, direct to your inbox!<\/p>\n<footer class=\"newsletter-form__footer \">By submitting your information you agree to the Terms &amp; Conditions and Privacy Policy and are aged 16 or over.<\/footer>\n<\/section>\n<\/div>\n<\/div>\n<\/div>\n<p>Over 14 iterations, analysis included a range of proprietary techniques such as unsteady flow simulations borrowed from Pirelli\u2019s other divisions.<\/p>\n<p>Pirelli also took the tyres to four different wind tunnels over eight testing sessions. Di Clemente says that although the results for different wind tunnels weren\u2019t precisely the same, they were consistent.<\/p>\n<h2 id=\"patented-paas-technology-3\">Patented PAAS technology<\/h2>\n<figure class=\"van-image-figure inline-layout\" data-bordeaux-image-check id=\"32d7afad-d862-4afe-ae80-6b044aa0f405\">\n<div class=\"image-full-width-wrapper\">\n<div class=\"image-widthsetter\">\n<p class=\"vanilla-image-block\">\n<source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-1200-80.jpg.webp 1200w, https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-1024-80.jpg.webp 1024w, https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-970-80.jpg.webp 970w, https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-480-80.jpg.webp 480w, https:\/\/cdn.mos.cms.futurecdn.net\/QVaEEv5q5FiW4wVVhZZeaB-320-80.jpg.webp 320w\" sizes=\"(min-width: 1000px) 970px, calc(100vw - 40px)\" \/><\/p>\n<\/div>\n<\/div><figcaption class=\" inline-layout\"><span class=\"caption-text\">Pirelli took its prototype tyre to four different wind tunnels to confirm its results <\/span><span class=\"credit\">(Image credit: Pirelli)<\/span><\/figcaption><\/figure>\n<p id=\"c16139e3-e8db-4392-a94a-f7cf1e406299\">Previously, brands have made tyres more aero by utilising features such as the vortex generators used in the Continental Aero 111 tyre and the new Cadex Aero tyre. Others, such as the previous generation Cadex aero tyre, have a narrow and tall section. Another option is to use a tyre that\u2019s narrower than the rim to reduce frontal area, a design which can be observed on Roval Rapide front wheels.<\/p>\n<aside data-component-name=\"Recirculation:ArticleRiver\" data-recirculation-type=\"inline\" data-mrf-recirculation=\"Trending Bar\" data-nosnippet class=\"clear-both pb-0 pt-2 mb-4\"><span class=\"\n            flex\n            after:content-[''] after:flex-1 after:ml-4 after:my-[0.7rem] after:border-t after:border-solid after:border-t-[#ccc]\n            before:content-[''] before:flex-1 before:mr-4 before:my-[0.7rem] before:border-t before:border-solid before:border-t-[#ccc]\n            font-article-heading pb-0 !text-base uppercase sm:text-sm font-bold\n        \"><br \/>\n            What to read next<br \/>\n        <\/span><\/p>\n<ul class=\"flex flex-col gap-0 m-0\">\n<li class=\"m-0 list-none border-b border-solid border-[#ededed] py-2\" data-recirculation-id=\"recirculation-card-1\" data-analytics-id=\"recirculation-2-inline-1\" data-mrf-recirculation=\"recirculation-2-inline-1\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/Ab5SWGiaU5GboLUYFR6W2f-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">After nine months of teasing, Specialized finally launches new tubeless cotton tyres<\/span><\/li>\n<li class=\"m-0 list-none border-b border-solid border-[#ededed] py-2\" data-recirculation-id=\"recirculation-card-2\" data-analytics-id=\"recirculation-2-inline-2\" data-mrf-recirculation=\"recirculation-2-inline-2\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/H4r7JQ3PbmALZWvH6r577Q-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">&#8216;A component that&#8217;s poorly understood&#8217; \u2013 Are tyres the next marginal gain for Dan Bigham at Red Bull-Bora-Hansgrohe?<\/span><\/li>\n<li class=\"m-0 list-none border-b border-solid border-[#ccc] py-2\" data-recirculation-id=\"recirculation-card-3\" data-analytics-id=\"recirculation-2-inline-3\" data-mrf-recirculation=\"recirculation-2-inline-3\">\n    <source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-250-80.jpg.webp 250w, https:\/\/cdn.mos.cms.futurecdn.net\/mikForwhSjoECGciZiavj3-150-80.jpg.webp 150w\" sizes=\"150px\" \/><span class=\"\n                            w-full font-article-heading line-clamp-3 md:line-clamp-2 text-base font-medium\">32-inch gravel wheels, aero tyres and more: Six tech highlights from the Cycling World Europe show<\/span><\/li>\n<\/ul>\n<\/aside>\n<p>Di Clemente claims that these approaches have their deficiencies. Vortex generators work better at high yaw angles but may increase drag at low yaw angles, while a pointy tyre can impact handling, and both can increase rolling resistance. Meanwhile, a narrower tyre has to be run at higher pressure, which can result in the by now well-known impacts on rolling resistance and comfort.<\/p>\n<p>In contrast, the P Zero Race SL-R has a standard profile and a slick tread. Its aero performance instead comes from its patented PAAS technology. This adds rubber at the tyre\u2019s side, increasing the tyre\u2019s width in the space above the rim, helping to smooth the tyre-to-rim interface.<\/p>\n<p>Signifying Pirelli Advanced Aerodynamic System, PAAS results from Pirelli\u2019s research finding that there\u2019s a specific positioning of the tyre\u2019s widest point relative to the tyre\u2019s height, when mounted on the rim, which provides optimal aerodynamic performance.<\/p>\n<p>As such, the PAAS profile is tyre-width specific, although the effect is seen across a range of rim profiles and yaw angles, particularly at higher yaw. Pirelli says that PAAS continues to be effective even as the tyre tread wears.<\/p>\n<p>It\u2019s similar to how Trek tried to smooth the airflow between the tyre and rim with its Bontrager R4 320 tyre, which was launched over a decade ago. However, Di Clemente says that Pirelli\u2019s approach still allows the tyre to be mounted and removed easily. Interestingly, he claims that the small groove around the edge of the tyre above the rim doesn\u2019t affect the new tyre\u2019s aerodynamics.<\/p>\n<p>Pirelli found that the width of the PAAS layer needed to vary by tyre width, so the brand will be launching the P Zero Race SL-R in just 28mm and 30mm widths, with a larger 32mm size scheduled to follow in October. The 28mm tyre has a 275g claimed weight, 15g less than the P Zero Race RS, although we weighed a pair at 286g and 288g.<\/p>\n<h2 id=\"2-watts-faster-than-the-p-zero-race-rs-3\">2 watts faster than the P Zero Race RS<\/h2>\n<figure class=\"van-image-figure inline-layout\" data-bordeaux-image-check id=\"07b3f9ad-374f-4f9f-af59-4790b51b02b2\">\n<div class=\"image-full-width-wrapper\">\n<div class=\"image-widthsetter\">\n<p class=\"vanilla-image-block\">\n<source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-813-80.jpg.webp 1200w, https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-813-80.jpg.webp 1024w, https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-813-80.jpg.webp 970w, https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-480-80.jpg.webp 480w, https:\/\/cdn.mos.cms.futurecdn.net\/vqfY9wCmt4TjnNnFxQModa-320-80.jpg.webp 320w\" sizes=\"(min-width: 1000px) 970px, calc(100vw - 40px)\" \/><\/p>\n<\/div>\n<\/div><figcaption class=\" inline-layout\"><span class=\"caption-text\">Pirelli&#8217;s results show a marked decrease in drag at high yaw angles versus the P Zero Race RS <\/span><span class=\"credit\">(Image credit: Pirelli)<\/span><\/figcaption><\/figure>\n<p id=\"800b5ee4-8eb8-443e-939f-7905a6a03ea5\">As well as multiple wind tunnel runs, Pirelli tested its new tyre on four different rims, including hooked and hookless designs and popular models from Zipp and DT Swiss.<\/p>\n<p>We asked for a little more information on the brand&#8217;s wind tunnel testing procedures and learned that a 60mm deep, hooked wheel was tested, which had a 23mm internal width. 28mm tyres were tested at an airspeed of 45km\/h.<\/p>\n<p>Overall, the brand&#8217;s wind tunnel testing shows a 2-watt aero gain in weighted average drag over the P Zero Race RS, normalised over yaw angles of up to 20 degrees at lower speeds. In a high wind test, this increased to 5 watts, due to a greater sailing effect at higher yaw angles.<\/p>\n<p>At a high yaw angle of 15 to 20 degrees, Pirelli claims it found a huge 15-watt saving versus the P Zero Race RS 28mm tyre in a single measurement point. Di Clemente says that this is likely due to the absence of a tread pattern on the new tyre, as Pirelli found that adding a grooved tread, which the P Zero Race RS has, impacted aerodynamics.<\/p>\n<p>The 15-watt figure is an edge case and peculiar to Pirelli\u2019s tyres; the energy saving is less marked, but still significant, relative to competitors\u2019 tyres it also tested at lower yaw angles. Overall, the key takeaway is roughly a 2-watt claimed saving over the previous Pirelli range topper; it&#8217;s unrealistic to expect huge 15-odd-watt real-world savings just by switching tyres.<\/p>\n<p>In its quest for aero optimisation, Pirelli has also reduced the font size of the embossed tyre info, which is mandated for all tyres, to the permitted minimum to avoid aerodynamic interference.<\/p>\n<h2 id=\"10-lower-rolling-resistance-3\">10% lower rolling resistance<\/h2>\n<figure class=\"van-image-figure inline-layout\" data-bordeaux-image-check id=\"43a95640-bfa9-42f1-832c-d9bbbb39940a\">\n<div class=\"image-full-width-wrapper\">\n<div class=\"image-widthsetter\">\n<p class=\"vanilla-image-block\">\n<source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-1200-80.jpg.webp 1200w, https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-1024-80.jpg.webp 1024w, https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-970-80.jpg.webp 970w, https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-480-80.jpg.webp 480w, https:\/\/cdn.mos.cms.futurecdn.net\/9ypMdexfhVEY6ZsKzu8W6B-320-80.jpg.webp 320w\" sizes=\"(min-width: 1000px) 970px, calc(100vw - 40px)\" \/><\/p>\n<\/div>\n<\/div><figcaption class=\" inline-layout\"><span class=\"caption-text\">Pirelli says that the shape of the tyre improves its aerodynamics and that the small discontinuity between the tyre and rim doesn&#8217;t impact the result <\/span><span class=\"credit\">(Image credit: Pirelli)<\/span><\/figcaption><\/figure>\n<p id=\"03909064-0961-451a-b64a-b407fb27334f\">Turning to rolling resistance, Pirelli uses the same Smart Evo 2 rubber compound in its P Zero Race SL-R, derived from its motorsport tyres, as in its P Zero Race RS tyre, which came out mid-pack in our CN Labs own rolling resistance tests of 24 tyres.<\/p>\n<p>Nevertheless, it says that there\u2019s a 10% decrease in rolling resistance, amounting to 2 watts saved per pair of tyres, due to its new LiteCore 120 TPI tubeless-ready casing.<\/p>\n<p>The lighter casing is claimed to be more supple, increasing ride comfort and grip, as well as lowering weight.<\/p>\n<p>Despite a lighter casing, there\u2019s still a puncture protection belt built into the tyre, and Di Clemente says that the mileage you can expect is the same as for the P Zero Race RS tyre.<\/p>\n<p>Pirelli is also likely to launch a time trial version in future, Di Clemente states.<\/p>\n<p>The P Zero Race SL-R is also the first tyre in the P Zero range not to be sold in 26mm width. It\u2019s already been used in the pro ranks and has ridden to two stage wins and the points classification in the 2026 AlUla Tour, as well as Stage 7 of Tirreno-Adriatico, by Lidl-Trek\u2019s Jonathan Milan. Matheu van der Poel himself also appeared to be using the tyres at Milan-San Remo.<\/p>\n<h2 id=\"mounting-and-first-ride-impressions-3\">Mounting and first ride impressions<\/h2>\n<figure class=\"van-image-figure inline-layout\" data-bordeaux-image-check id=\"727985dd-c943-428c-bad3-e42844ba2843\">\n<div class=\"image-full-width-wrapper\">\n<div class=\"image-widthsetter\">\n<p class=\"vanilla-image-block\">\n<source type=\"image\/webp\" srcset=\"https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-1200-80.jpg.webp 1200w, https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-1024-80.jpg.webp 1024w, https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-970-80.jpg.webp 970w, https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-650-80.jpg.webp 650w, https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-480-80.jpg.webp 480w, https:\/\/cdn.mos.cms.futurecdn.net\/qCFyisCvD3kiFCjAwis2sY-320-80.jpg.webp 320w\" sizes=\"(min-width: 1000px) 970px, calc(100vw - 40px)\" \/><\/p>\n<\/div>\n<\/div><figcaption class=\" inline-layout\"><span class=\"caption-text\">The 28mm tyre inflated on a tubeless rim with just a track pump <\/span><span class=\"credit\">(Image credit: Future)<\/span><\/figcaption><\/figure>\n<p id=\"c52ebf37-3d55-4634-8797-119b89773d6f\">As with many tubeless tyres, mounting the P Zero Race SL-R tyres was a bit of an ordeal. But once on the rim, I seated both tyres first time with just a track pump, and they held air immediately. On a 19mm hooked rim, they measured exactly 28mm.<\/p>\n<p>A ride of a couple of hours suggested that they provide good comfort on typical UK road surfaces, and they felt as if they rode performance tyre fast, even if I had no basis to assess the aero claims.<\/p>\n<h2 id=\"pirelli-p-zero-race-sl-r-prices-3\">Pirelli P Zero Race SL-R prices <\/h2>\n<p id=\"046dab9b-9b78-487d-b1fd-d759e05ab6b3\">Both the 28mm and 30mm width of the Pirelli P Zero Race SL-R tyre are priced at \u00a394.99 in the UK, or \u00a399.99 for the Team Issue tyre with yellow logos, as ridden by Mathieu van der Poel.<\/p>\n<p>In Europe, both the standard and Team Issue tyres cost \u20ac99.99.<\/p>\n<\/div>\n<p>[analyse_source url=&#8221;https:\/\/www.cyclingnews.com\/cycling-tech-components\/wheels-tyres\/pirelli-launches-the-new-race-tyres-that-the-pros-have-been-using-for-months\/&#8221;]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[analyse_image type=&#8221;featured&#8221; src=&#8221;https:\/\/cdn.mos.cms.futurecdn.net\/t2MyR26TAkxEWWtxGykfUB-2560-80.jpg&#8221;] Cycling Tech &amp; Components Wheels &amp; Tyres Pirelli boasts new aerodynamic trick with its new P-Zero SL-R race tyre News By Paul Norman published 24 March 2026 The new Pirelli tyres focus on improving the relationship between tyres and wheel rims to boost aero performance When you purchase through links on our [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[226,68],"class_list":["post-1845780","post","type-post","status-publish","format-standard","hentry","category-politics","tag-crawlmanager","tag-cyclingnews-com"],"_links":{"self":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/posts\/1845780","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1845780"}],"version-history":[{"count":0,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/posts\/1845780\/revisions"}],"wp:attachment":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1845780"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1845780"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1845780"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}