Pirelli P ZERO Race TLR Tire - 700 x 40 - Tubeless - Black - SmartEvo - SpeedCoreThe P Zero Race TLR is the most performing tire in Pirellis portfolio, as well as being the first tire with a tubeless technology entirely made in Italy. The design features SpeedCore technology in a 120tpi casing, utilizing a layer of compound mixed with aramid that covers the inner layer of the tire, improving the smoothness and the resistance of the rubber. The result is a less stiff, but faster tire. The compound on the other hand, maintains the