This clutch is normally used on the water-cooled 250cc ATVs, Go Karts, Buggies and Scooters, with CVT belt type transmissions. Also fits the HART KARTS with 300cc Engine. Number of Bell Splines: 16 clutch bell housing splines ID: approx 16mm. Needle bearing on the clutch assembly measures approx 24mm inside. This HEAVY DUTY CLUTCH uses larger Spline Transmission Shafts than found on most units. PLEASE MEASURE BEFORE ORDERING!!
