Wilwood’s 2.76-inch adapter rotor/hat register ring is supplied as a two-pack to provide a defined seating diameter for rotor-to-hat alignment. These rings are used where a 2.76-inch register is required, helping ensure rotors sit correctly on the hat interface and maintain proper centering during installation. They act as registration spacers to resolve mismatched diameters in compatible brake setups.

Wilwood Adapter Rotor/Hat Register Ring 2.76in Dia. - 2 Pack