Adjust the steering head angle of your racebike for ideal geometry.
When ordering specify in the notes what make/model/year of bike you have and the degree you are wanting.
This product for multiple different models, Yamaha R1, GSXR1000, etc etc - Uses Yamaha P/N 93399-99931-00 qty 2 for steering bearings
Bearings and lower dust seal included, for use with e/t Rake Adjust Stem.