Centrifugal Clutch Assembly - 3/4 Bore, 10 Tooth for Go-Karts and Mini Bikes - Version 50Centrifugal Clutch Assembly 3 4 Bore 10 Tooth for Go Karts and Mini Bikes Version 50 Clutch assembly is a centrifugal clutch for go karts and mini bikes. Clutch details: 3 4 inch Bore 10 Tooth Teeth Can be used with #40, #41 and 420 chain 31913563 MB200 241 168A Known to fit 5. 5hp and 6. 5hp engines with 3 4 inch shafts including Baja Heat, Warrior, Mini Baja, Massimo MB200 and Harbor Freights Predator 212cc engine. Check pictures and measurements to