These pieces allow you to install a 2006+ Yamaha YFZ450 rear shock and linkage onto your Yamaha 06-09 YZ450F, 06-12 YZ250F, 06-18 YZ250 frame (may fit other models and years)
It includes: upper shock mount sleeve which replaces the stock needle bearing race, and linkage bolt mount adapters which allow you to run the smaller diameter bolt size used in the YFZ450 Linkage in your YZ450F frame.
Bolt size needed is M12 X 130mm and you will need one nylon locking nut, make sure you use a proper grade bolt for the application
Each part is precision cut for an exact fit
Note: not for use with YFZ450R parts