Product Review

Set screws and chain NOT included.
Centrifugal clutch 10 tooth, 5/8" bore, #40/41/420 chain with 3/16 key built in.
Common clutch for 2-3hp engines using #40/41/420 chain.
Mounts onto crankshaft using bolt and washer on the end of the crankshaft does not have set screws.
Please double check your crankshaft size.
The 5/8" bore clutch is used mostly on older engines.
Package includes
1 x Go Kart Clutch