Grand Sport Race features a proven racing tire contour for responsive handling and secure grip. This tire is an ideal all-rounder, ready for every challenge, even the biggest ones. FEATURES: Designed for performance in touring and competition uses The Nytech Breaker is based on the technology of the SafetySystem ­puncture protection. Made of nylon fiber and similar to Kevlar, it reliably protects against punctures and cuts. It also has particularly low rolling resistance and reduced weight, perfect for our performance range of road tires PureGrip Compound is derived from an activated Silica compound to do exactly what it says; offer exceptionally good grip and durability SPECS: Flat Protection: Tread ISO Diameter: 622 / Road / 29" TPI: 330 PSI: 116 Color: Black Defined Color: Black Tire Intended Use: Road Tire Type: Clincher Tire Diameter: 700c Tire Bead: Folding