Styled on the GP4000, but with extra protection layers for harsh weather conditions Duraskin® cut-resistant layer from bead to bead plus 2 extra Vectran breakers Black "Max Grip Silica" compound optimised for wet weather adhesion, low temperatures and extended tread life. Vectran anti-puncture technology, tougher than aramid Folding Bead ETRTO Size: 28-622 Max Pressure: 115 psi Size: 700 x 28 Weight: approx 250g
eBay