This is a Titan World Formula Clutch (#219 Chain)
Product Specs:
3/4″ Bore
#219 Chain
Machined Drum with Interchangeable Sprockets
Unique Hub and Shoe Design
Quick and Easy Set-Up Changes
12-22T
Stock Engagement: 4200 RPM
Stock Spring: Orange
**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 soley on the engine size.**