New 320 TPI suppler cotton casing help reducing rolling resistance even further. New softer rubber compound coming from MTB World Cup experience for a better cornering gip and an increased traction. New puncture protection 40% over previous model. This design, specifically made for cyclocross, is ideal for all trails where traction and control are vital, on dirt or mud the cleverly spaced knobs make for a self cleaning tyre, with low rolling resistance; tubular structure with hybrid Corespun 320 TPI Casing polycotton thread and Kevlar excellent comfort, great strength and a superior rolling resistance puncture resistance latex inner tube; possibility of low inflation pressure to increase surface contact. New 320 TPI softer Rubber compound for better corning grip and increased traction specifically made for cyclocross, where traction and control are vital on dirt and mud Weight 390 grams Recommended pressure 35-90 psi