Wilwood 170-15229 GT Series Dynamic Mount Disc Brake Rotor Hat 0.79in Offset 5x4.72 - 12 on 8.75in

The Wilwood 170-15229 is a GT Series Dynamic Mount Brake Rotor Hat designed for front Big Brake Kit applications. Featuring a 0.79-inch offset, a 5x4.72-inch (5x120mm) wheel mount pattern, and a 12 on 8.75-inch rotor bolt circle, this hat is precision-engineered for extreme motorsports competition and high-performance street use.

Key Features:

• Precision machined from premium-grade aluminum for exceptional strength with minimal unsprung and rotating weight
• Floating Wilwood T-nuts provide true dynamic mounting, allowing proper thermal expansion between the hat and rotor
• Wide load-bearing T-nut surface and straight through-hole mount design effectively isolates pad engagement harmonics
• Dynamic mounting system accommodates in-service thermal variations for consistent, reliable braking performance
• Rotor Bolt Circle: 12 on 8.75 in
• Wheel Mount Pattern: 5x4.72 in (5x120mm)
• Hat Offset: 0.783 in (0.79 in nominal)
• Compatible with standard through-hole mount rotors

Wilwood GT Series Dynamic Mount Rotor Hats are engineered for the rigors of motorsports competition, delivering precise rotor alignment and long-term durability under extreme thermal and mechanical stress. Sold individually.