EPI Mudder Clutch Kit - Elevation: 0-3000ft. - Tire Size: 28-29 1/2in. WE437137 Designed for mud riding with aggressive lug tires Helps restore power loss due to addition of mud tires Better low end power and torque to get tires turning in the mud Quicker backshift which results in crisp throttle response Reduced belt slip and clutch heat