This sprocket kit provides a 20 to 30 percent weight reduction over the stock chain kit, improving braking and acceleration while still maintaining durability and longevity. All kits include chains that are pre-cut to save installation time. Each kit includes a lightweight steel drilled front sprocket; a Superlite RS7 series CNC machined black steel rear sprocket; premium DID 520VX2, 520ERV3 or 520ZVMX ring sealed chains cut to length; and a rivet style master link. The retail price is $184.95.