PERFORMANCE IN ANY WEATHERDESCRIPTION The P ZERO™ Race 4S is the successor to the famous P ZERO™ Velo 4S, Pirelli's very first four-season bicycle tire. While improving on the well-known behavior of the previous model, the P ZERO™ Race 4S still features the essential characteristics of an all-season race tire: it offers consistent grip performance in all weathers, including wet and cold days, and delivers the racing feel that makes the P ZERO™ Race range the preferred choice of professional cyclists. Exceptional all-weather performance is achieved thanks to the combination of two renewed technical features: the SmartEVO compound, the latest evolution of Pirelli's road-specific formulations, and TechBELT Road, a tube-type casing composed of a 120 tpi casing and a nylon breaker. The tire also features a new design: special deep sipes are combined with a thicker tread, improving grip in cold weather, more mileage and better protection against punctures. All the special features of the new P ZERO™ Race 4S are skillfully crafted in Italy, offering unique quality and superior performance.TECHNOLOGY- SMART Evo comppund- TECHBELT Road CHARACTERISTICS- Created for 4 seasons- Handling- Grip.