Eliminate vibration, excessive bearing wear, and possible structural failure of lugs caused by Non-Hub Centric Wheels. Hub Ring Internal Diameter (ID) (Match to Vehicle Hub Diameter): 73mm Hub Ring Outer Diameter (OD) (Match to Wheel Center Bore Diameter): 70.1mm Precision manufactured to provide a perfectly sized fit. Tough, corrosion resistant and is able to withstand harsh temperatures. Chamfered edges provide for easier installation while making sure they match the wheel center bore seat profile, 70.10mm ID (Metal)