Wilwood 170-12429 Lug Drive Dynamic Drag Brake Rotor Hat Offset - 1.96 8x7.00

The Wilwood 170-12429 Lug Drive Dynamic Drag Brake Rotor Hat features Wilwood's innovative bolt-free rotor mounting system engineered specifically for drag racing applications. With a 1.96-inch offset and an 8 x 7.00-inch rotor bolt circle, this precision-machined aluminum hat allows rotors to float and move independently as they expand and contract through heat cycles, eliminating all thermally generated stress at the rotor attachment points.

Key Features:

• Bolt-free lug drive system — eliminates rotor mounting bolts entirely, removing the need to torque or safety-wire hardware
• Floating rotor design — rotors move independently of the hat through thermal expansion and contraction cycles, keeping rotors flatter and running truer
• Spring-loaded stainless steel inserts — replaceable inserts in each lug-drive slot protect the aluminum hat from wear caused by brake torque loading
• Single snap-ring rotor retention — large snap ring makes rotor assembly and installation fast and straightforward
• Eliminates pad knock-back and rotor drag — consistent brake response and pedal feel throughout use
• No thermal distortion issues — bolt hole alignment problems when re-installing new rotors on a used hat are fully eliminated
• Lightweight aluminum construction with black finish
• Multi-5 lug pattern for broad hub compatibility

Specifications:

• Material: Aluminum
• Finish: Black
• Hat Offset: 1.960 in.
• Rotor Bolt Circle: 8 x 7.00 in.
• Center Hole I.D.: 3.060 in.
• Clearance I.D.: 6.200 in.
• Face Thickness: 0.250 in.
• Stud Hole Diameter: 0.520 in.
• Quantity: Sold individually

Designed for serious drag racing applications, the 170-12429 delivers the consistent braking performance and durability that Wilwood is known for, with a next-generation mounting system that outperforms traditional bolt-on rotor hats in every measurable way.