Wilwood Adapter Rotor/Hat Register Ring 2.28in Dia.

Wilwood is known for making high-performance brake components, and these Rotor and Hat Register Adapters are a small but important piece of that system. They're used to precisely locate one-piece iron rotors and aluminum hat assemblies onto your vehicle's specific hub or axle registers. This ensures your brake rotor is perfectly centered, which is crucial for consistent braking performance and preventing uneven wear.

These adapters are available in a range of sizes, and this particular one has an internal diameter of 2.28 inches. To install, it requires a 3.06-inch center hole in the hat or rotor, with a counterbore for proper seating. Getting this centering right is key for any brake job where you're using aftermarket rotors and hats.