Harsh weather? Cold temperatures? The Pirelli P Zero Velo 4S is the way to go. With outstanding wet grip and puncture protection, this clincher delivers a high-performing ride. Its unique tread design is developed to shed water from your path, allowing you to enjoy formidable control, even in challenging weather conditions. Wet or dry, the 4S will rise to the challenge. The rubber belt, the design of its pattern and the cross section all are at the heart of the performances of a tyre: the contact point between the ground and the bicycle. It is made of a mix of carefully selected and balanced chemical elements and engineered grooves, that greatly contribute to the tyre's outstanding performance. Made from our innovative SmartNET™ Silica and ICS and FGD technologies, it provides all-round cycling excellence. Pirelli's SmartNET™ Silica grants both rolling efficiency and wet grip, delivering an all-season tyre with outstanding performance. Tread design developed with FGD and ICS technologies provides great handling and water drainage, even in harsh weather conditions. Overall increased SmartNET™ Silica tread pattern thickness in addition to an aramid fiber puncture-resistant belt ensure extensive mileage and reliability in bad weather and cold temperatures. Pirelli P Zero Velo 4S Features The all round performance cold weather tyre Balanced dry & wet grip Low rolling resistance Increased puncture protection Higher mileage longevity Increased comfort Tyre Specification Size: 700x23c/25c/28c TPI: 127 PSI: 100+ Bead: Folding Compound: Smartnet Silica Puncture Protection: Aramid Fibre + Smartnet Silica Tech: ICS, PFD Weight: 205g/220g/250g Pirelli P Zero Velo Size Options   MPN Size ETRTO TPI Bead Weight (g) Compound Puncture Protection PSI Tech Color Option 1 PIR-2908700