Michelin Force XC Tire Fold Gum-3XD Cross Shield 29x2.1 BlackThe Michelin Force XC Tire is engineered to be a fast rolling XC tire for dry/hardpacked and mixed terrain. The directional center tread rolls fast with progressive shoulder lugs provide additional cornering stability. The Gum-3XD triple rubber compound is optimized to maximize rolling efficiency and cornering grip. The Cross Shield triple layer 110 TPI casing reduces weight, increases comfort, and increases the puncture protection. Weight: 2.1: 800g 2.25: 860g. Available in 29x2.1 and 29x2.25.086699042736