Pirelli P ZERO Race 4S Tire - 700 x 30 Clincher Folding BLK TechBelt SmartEvoThe Successor of the famous P Zero Velo 4S: a further evolution of our best selling all season tire. SmartEVO compound enhances performance on wet and cold tarmac, while the new TechBELT construction continues to provide the handling and racing feeling that made the PZero family famous all over the world. A slightly thicker tread improves the mileage of the tire, making it the ideal solution to cycle in every season without giving up on its racing