Specification:
Outside diameter 4 3/4"
Total width 3"
Clutch back to sprocket is 2 1/2"
40/41/420 Chain sprocket

Features:
This fits on a 1" crankshaft the other end is 3/8".
The crankshaft must be threaded to accept a bolt to hold clutch onto shaft.
Comes with two set screws and 1/4" key. This is a heavy duty clutch designed for standard live axle karts using up to 18" tall tires.
This will not take the place of a torque converter but is ideal for larger hp engines (up to 13hp) for fairly flat land riding.

Package Includes:
1 x Heavy Duty Centrifugal Clutch