Centrifugal Go Kart Clutch Kit Minibike 3/4 5/8 Bore 10T 11T 12T Chain #35 40 41 Lot Go Kart Minibike Centrifugal Clutch 3/4 5/8 Bore 10T 11T 12T Chain #35 #40 #41 Set Screws and Chain NOT Included. Please choose the style you want. 3/4″ Bore 10T #40#41 Chain Centrifugal Clutch 10 tooth, 3/4″ bore, #40/41/420 chain with 3/16 key built in. Common clutch for 3.5-7hp engines using #40/41/420 chain. Mounts onto crankshaft using bolt and washer on the end of the crankshaft. Our clutch assembly with 3/4″ shaft for 163cc 5.5 Hp & 196cc 6.5 Hp Engines is the OEM replacement clutch assembly used on all versions of the Baja Mini Bike, including the Baja Heat, Mini Baja, and the Baja Warrior. It is compatible with both the MB165 and the newer MB200 models. This item is also a perfect replacement part on many small utility 163cc 5.5 Hp and 196cc 6.5 Hp engines. Baja Part Number: 165-046 Compatibility: Baja Mini Bike MB165 & MB200 (Baja Heat, Mini Baja, B