#35 pitch 12 tooth Comet Clutch for 1 inch shaft and has a built-in square key. This clutch has to be mounted with sprocket away from engine and only slips 1" onto the crankshaft and is held on by a bolt that screws into the end of crankshaft.
#40/41 pitch 10 tooth Comet Clutch for 1 inch shaft and has a built-in square key. This clutch has to be mounted with sprocket away from engine and only slips 1" onto the crankshaft and is held on by a bolt that screws into the end of crankshaft.