The fastest bicycle tire ever tested has the lightest tubeless casing on the market. This race day specific weapon has raised the bar in tire technology! The Corsa Speed uses an exclusive Graphene G+ ISOtech compound, which is then combined with an ultra-thin Corespun-T carcass. The end result is a tire that retains the lowest rolling resistance, while offering the characteristic flexibility of the Corsa, and exceptional wet grip. When used tubeless, the carcass works perfectly with the sealant, providing an even higher level of protection against punctures. This carcass can also be used with an inner tube, if you prefer. When absolute speed is your top priority, don't accept any substitutes!