Clutch Kit for Polaris RZR Pro XP (0-3000') Stock to 32" Tires (21-23)Excellent all around use Designed for trail, mud, sand, & hauling Increases low end & mid range torque Increases low end smoothness Eliminates harsh engagement of clutches Eliminates belt slippage Provides better back shift down shift Improves throttle response Reduces clutch temperature Heat resistant DUMAX drive belt increases strength 30% compared to OEM and other aftermarket belts Kit includes belt, springs, and weights