12150
This clutch was specifically designed to work on the 79cc & 99cc engines with our jackshaft setup. Clutch has an 11 tooth sprocket setup for #35 chain. The shoes and spring have been modified for better engagement compared to standard Max Torque clutches. Clutch engages at 2500 rpm. 100% better than clutches we've dealt with on skyhawk and 4g kits.