Wilwood’s 2.53-inch diameter adapter rotor/hat register ring is supplied as a two-pack to provide the correct seating diameter for rotor-to-hat alignment. When a 2.53-inch register is required by the rotor or hat, these rings help center and locate the rotor accurately on the hat interface for proper mounting. They resolve mismatched registration sizes in compatible brake assemblies.

Wilwood Adapter Rotor/Hat Register Ring 2.53in Dia. - 2 Pack