Pirelli P ZERO Race TLR RS Tire - RetroThe P ZERO Race TLR RS was developed specifically for racing purposes, making it one of Pirellis fastest and most high performing cycling tires to date. Maximizing the balance between speed, handling and grip, the P ZERO Race TLR RS features SpeedCore technology and Pirellis SmartEvo compound, along with a newer TLR bead design for even better compatibility and air retention. SmartEvo Compound features a blend of smart polymers inherited from the