The HD Series Fixed Mount Rotor Hats from Wilwood have a long-standing reputation for durability, fit, and performance.
Manufactured from premium grade aluminum alloys, HD Series hats offer low weight, high strength, and show quality appeal.
Not only have HD hats been a mainstay in many of Wilwood's racing disc brake conversion kits, but they can also cover a range of applications from an OE four lug axle shaft to a Grand-National stock car racing hub.
Featuring a straight bell construction with a flanged rotor mount ring, HD hats include threaded-hole mounts for use with through hole rotors.
When used with matching Wilwood rotor hardware, these hats ensure solid mounting for a wide range of custom and competition disc brake applications.
These features combine to maximize radial clearance between the caliper body and the hat, which can be critical when trying to fit a large caliper inside a small wheel.
Many hats offer multi-lug wheel patterns for added versatility, and some hats can be ordered blank for custom axle building and other unique applications.
