Pirelli P ZERO Race TLR 4S Tire - 700 x 28 Tubeless Folding BlackPirelli P ZERO Race TLR 4S Tire 700 x 28 Tubeless Folding Black. The PZERO Race 4S TLR is a year long racing tire featuring tubeless technology thats able to provide high grip in all kinds of weather and an increased puncture protection while still maintaining the racing feeling characteristic of the PZERO Race range. This result was achieved thanks to the Speedcore tubeless technology with the latest evolution of casing construction and the SmartNet