This is a Clutch #41 Chain, 10T with a 3/4″ Bore for Go Kart or Minibike.
Product Specs:
3/4″ Bore with 3/16″ keyway.
10T Driver for #40/41 Chain
Bi-Directional (inboard or outboard)
This clutch does not come with or use set screws. Clutch does not need set screws as long as the end of the crankshaft is threaded for a bolt. Most go kart clutches are held onto the shaft with a bolt and larger washer. Extra washers can be used on the crankshaft to space clutch.
**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.**