Wilwood Hat-BB Front.635in Offset 5 x 4.25/4.50 - 12 on 8.75in

This is the Wilwood GT Series Flared Bell Hat, designed for front big brake setups. It's precision machined from strong aluminum alloys, keeping the weight down while providing a solid mounting point for your rotors. These hats feature threaded holes for rotor mounting, meaning you can use them with standard through-hole rotors, or with T-Nuts or bobbins if you're using specially machined slotted rotors. When paired with the right Wilwood rotor hardware kits, these hats offer reliable performance for your braking system.

The flared bell design is typically used with rotor mount bolt circles of 8.38 inches and larger. This particular hat has a 0.635-inch offset and accommodates a 5 x 4.25/4.50 inch bolt pattern for the rotor, designed for 12-inch rotors with an 8.75-inch mounting surface. Wilwood is known for making well-built brake components, and these hats are a key part of a high-performance brake upgrade.