Go Kart Minibike Belt Direct Drive Fun Kart Centrifugal Clutch 3/4″ Bore 13 Tooth #428 Chain Fitment: Go-karts and Mini-bikes, clutch can mount inward or outward on crankshaft. Teeth: 13T; Bore Size: 3/4 inch; Competiable Chain Size: #428; Engagement Speed: 2000??100 RPM; Horse Power: 3.5-7HP 170F Engine Package Included: 1 x Go Kart Clutch 3/4″ Bore 13 Tooth (Inner Hole 20mm) Carkio focuses on providing high-quality products and first-class services at reasonable prices. If you are not satisfied with our products, you can return them within 90 days. Description: Product Name: Centifugal Clutch Mini bike go kart Size: 3/4″ go kart centrifugal clutch chain screw Tooth:13 Competiable Chain Size: #428 Engagement Speed: 2000??100 RPM Horse Power: 3.5-7HP 170F Engine Fitment:Go-karts and Mini-bikes, clutch can mount inward or outward on crankshaft. This item is a perfect replacement part on ScooterX Sport Kart, Mini Bike, Mini Chopper, Lawnmower, Garden Equipme