The X-Rings twist between the side plates instead of being squished to reduce friction and minimize power loss
High carbon rear sprockets are heat treated for maximum durability and long life
Countershaft sprockets are made from chromoly steel for superior strength and durability
DID 1230-0381 Vehicle Fitment & Compatibility
Fitment data lists this product for 7 model-year applications, including Yamaha YZF R6 and Yamaha YZF R6S, with listed model years from 2003 through 2009.