As the culmination of carbon performance, the Cosmic Pro Carbon SL UST combines lightweight aerodynamic design with our newest UST Road Tubeless technology. The result is an incredibly capable versatile device with very low rolling resistance; a softer and more comfortable ride quality; and the added security of a reduced risk of punctures. In addition, it is the most user-friendly tubeless system in terms of installation, removal and maintenance. As a pioneer in tubeless technology with our proven UST system, Mavic gives you the confidence that comes from our history and expertise. The rim design of the UST Cosmic Pro Carbon SL has an internal width of 19mm, ideal for 25mm tires. The NACA aerodynamic profile reduces wind resistance and improves crosswind stability. The rim is made with layers of continuous carbon fibers to obtain a single contour in a piece straight out of the mold. This technique, which we call iTgMax, offers superior thermal management, allowing the rim to withstand temperatures up to 200 ° C. Our unique molding process and laser machining allows for a uniform braking track with virtually zero surface variations. This results in the shortest braking distances in dry and wet conditions, with a higher consistency. The hubs are equipped with our fast, quick-action Instant Drive 360 freewheel system, combined with our patented aero spokes. The wheel-tire system is equipped with Yksion Pro UST tires that offer a simple and hassle-free tube-free road configuration with high rolling efficiency and maximum efficiency. grip in all weathers. Key Features With UST Road Tubeless, no tube, no friction. The rolling resistance and speeds are therefore lower.UST Road Tubeless allows you to ride with lower tire pressure for a smoother ride quality and a reduced puncture risk. Our patented UST system offers a perfect union between tire and wheel. maintenance: easy 25 mm outer width for better rim / tire integration and superior handling in all conditions. The laser process removes resin from the braking tracks while leaving the carbon intact, producing predictable braking performance in dry or wet weather. The UST system (including the sealant) weighs 40 grams less than a traditional tire and tube system. The aerodynamically shaped rim has a NACA profile to reduce drag and improve crosswind stability. Patented elliptical spokes further improve aerodynamics. Why buy at Evans Cycles? As cyclists ourselves, we know that you want to buy the latest cycling equipment for your bikes at the best price, so we offer you excellent service from the beginning of your trip with us.Click on collect: Buy online and collect easily in your store. Match Price: We offer a match price guarantee if one of our direct competitors is cheaper than us. This includes Cycle Surgery, Wiggle, Chain Reaction Cycles, Halfords, Tredz and Cycle Republic. 90 business days: If you change your mind, all items except food, videos, DVDs, face masks, RIDEIT events, and software may be returned to us. within 90 days, for any reason, provided it has not been used or mounted and returned in its original packaging with valid proof of purchase.