This is a Pulley Clutch with 3/4″ Bore.
Product Specs:
Bore: 3/4″
Keyway: 3/16″
Belt Clutch
Drum dimensions: 1.2″ (Thick) x 3.7″ (Dia.)
**There are many variables that play into the performance of a clutch. Tire size, rear sprocket size and rear drive set-up are a few of the main variables that could affect clutch performance. If you are using large tires or a small sprocket, your vehicle may require a belt drive system. Clutch performance is not based solely on the engine size.**