Pirelli P-Zero Race Retro Clincher Road Tyre The Pirelli P-Zero Race Retro Clincher Road Tyre combines the advantages of tube-type technology in an all-round cycling tyre, perfect for high-intensity training sessions and races. The TechBELT Road carcass enhances reliability against punctures without adding weight, while the special SmartEVO Compound improves grip on both wet and dry asphalt compared to previous cycling compounds. The SmartEVO Compound remains Pirelli's best chemical formulation for all-round road use, ideal for racing, high-intensity, and long-distance leisure riding. The advanced mixture of polymers with 'smart' behaviours are the key elements of the SmartEVO compound, providing grip in any weather condition and offering very low rolling resistance. This high-performance chemical formulation is developed for modern road cycling, from everyday riding to racing, even at the World Tour level. With TechBELT ROAD technology the 120tpi casing includes an added layer of nylon fabric under the tread, making it a reliable choice for all types of road use, including racing, training, and commuting. The TechBELT ROAD is an exclusive feature of the P-Zero range.