* This lightweight and fast tire is crafted to pack the key benefits of tubeless technology into a race-day product, emphasizing speed and handling and exceeding the performance of any other Pirelli bicycle tire in this class, TT and lightweight tubulars included, without compromising on puncture protection thanks to the TechWALL casing technology. * After three years of development working with the fastest racers at the World Tour level, Pirelli designed this new tubeless-ready tire with the new SmartEVO compound to provide our Professional riders as well as all cycling enthusiasts, with our best bicycle racing tire to date!* Techwall Road: New TLR casing technology with an added layer of reinforcement to provide superior puncture protection in a lighter structure* 28c width is compatible with hookless rims according to ETRTO 5bar/73psi max pressure limitations. 24c and 26c width are NOT compatible with hookless rims.