M910 4-Snow SPORTFor improved acceleration, the Maxxis 4-Snow expands up to 40% during use. It features a reversible tread design for optimum traction on snow and ice. The soft compound remains flexible in cold weather for better grip. Features & Benefits Tire diameter expands up to 40% during acceleration for additional traction and ground clearance; reduces need for shifting. Reversible tread design offers optimum traction: scoop for snow and backside for increased contact surface on ice. Special soft compound stays flexible in cold weather for amazing grip and the smoothest ride ever! Drag racer’s first choice on ice, snow and sand.