Wilwood 170-17030 Big Brake Dynamic Lug Drive Disc Brake Rotor Hat

The Wilwood 170-17030 is a Big Brake Dynamic Lug Drive Rotor Hat featuring an advanced bolt-free rotor mounting system engineered to eliminate thermal distortion and improve braking consistency. Unlike traditional fixed-mount designs, this hat allows the rotor to float and move independently as it expands and contracts through heat cycles, removing all thermally generated stress from the rotor attachment points.

Key Features:

• Bolt-free lug drive mounting system — eliminates rotor mounting bolts entirely for a cleaner, more reliable assembly
• Thermally independent rotor float — rotors expand and contract freely, staying flatter and running truer under heat
• Spring-loaded, replaceable stainless steel inserts in each lug-drive slot protect the aluminum hat from wear caused by brake torque loading
• Single large snap-ring retention — secures the rotor to the hat for fast, tool-free assembly and installation
• Eliminates pad knock-back and rotor drag — consistent brake response and pedal feel are maintained throughout use
• Drilled stainless alloy disc compatibility — designed for use with additionally drilled rotors to minimize unnecessary rotating weight
• No torquing or safety wiring required — simplifies installation and future rotor replacement
• Precision-machined from premium-grade aluminum alloy for high strength and low unsprung weight

By removing all thermal distortion concerns — including bolt hole misalignment on rotor replacements — the Wilwood 170-17030 Dynamic Lug Drive Hat delivers superior performance and long-term reliability for high-performance street and competition disc brake applications.