Description
Pre 2000 Harley-Davidson rotors require an adapter ring in the center hole of the rotor* to make the center hole diameter 1.985". This will accommodate for the 3/4" axle and Timken bearing.
*Lyndall Rotors need to be machined to accept the adapter ring. If you are ordering an adapter ring for rotors you have already purchased, you will have to send the rotors to us to be machined to accept the adapter ring.