Pirelli P ZERO Race TT Tire - 700 x 28, Clincher, Folding, Red Label, TechBelt, SmartEvoMade for those who race against the clock in time trials or triathlons. P Zero Race TT has been developed in collaboration with professional athletes using our most advanced compound derived from the world of elite motorsports. This SmartEVO compound, paired with a superlight 120tpi casing makes the P Zero Race TT the fastest, lightest tube type tire in Pirelli's portfolio. SmartEVO Compound features a single compound formulation based on three