Wilwood Dynamic Bobbin Mount Brake Rotor Hat

Wilwood Dynamic Bobbin Mount Brake Rotor Hats use a floating rotor mounting system for disc brake setups. They are also called dynamic mount rotor hats or bobbin mount rotor hats. The bobbin-style mounting lets the rotor move independently of the hat as it expands and contracts through heat cycles. That keeps heat-related stress off the hat and the rotor attachment points.

Key Features:

• Dynamic bobbin mounting: The rotor can float relative to the hat as temperatures change.
• Less thermal stress: Thermally generated stress is removed from the rotor attachment points.
• Flatter, truer rotors: The rotors stay flatter and run truer.
• Consistent pedal feel: Brake response and pedal feel remain consistent.
• Reduced drag: Pad knock back and rotor drag are eliminated.
• Hat stays undistorted: Thermal expansion and shrinkage of the rotor no longer distort the hat.

The line includes several hat styles, such as short-offset, flared bell and parking brake designs. Hats are available in aluminum and iron constructions with protective finishes. Wilwood designs and builds its brake components in the USA. These hats suit street performance, road racing and other motorsports builds where heavy braking creates high heat.