13-tooth clutch bell made from HUDY metal, precision-machined on a unique gear device. Strategically lightened without the need to lose energy or durability to reduce rotating mass. The 3x ball-bearing design originated to obtain additional precise and wobble-free procedure. Less play the clutch bell increases performance and far longer lifespan for bearings and clutch bell. Lightweight design with machined areas in reality enables you to reduce temperature build-up inside clutch. Fits simply 4-shoe clutch #358400.