REKLUSE CLTCH RADCX CRF450R 13-16 RMS-7901010RadiusCX is a top of the line auto clutch product that brings together all of Rekluse's technology into one package, TorqDrive friction disk technology coupled with EXP and Rekluse's Core technology results in significant auto performance with exceptional hook up, lever feel and durability, Better starts, carry more speed, focus on the line and not on the clutch, Perfect power delivery every time, Maintain momentum, use the torque of your motor