AHL Starter Clutch One Way Bearing for Yamaha WR450F WR450 F 2003-2006 2012-2016 Number of beads:16pcs,one-way rotation to prevent reversal High quality stainless steel material,efficient and durable Provides the performance and dependability you expect from AHL OEM replacement one way starter clutch bearing,ideal for the motorcycle Quality Assurance!If you are not satisfied with our products,we accept all of the return,replacement or refund requests