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.

If you have any Questions Please message me. Thank You.