Pirelli P ZERO Race TLR RS Tire - 700 x 28 Tubeless Folding Classic Tan SpeedCore SmartEvoPirelli P ZERO Race TLR RS Tire 700 x 28 Tubeless Folding Classic Tan SpeedCore SmartEvo. The 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