Wilwood 170-16107 Big Brake Dynamic Lug Drive Hat

The Wilwood Big Brake Dynamic Lug Drive Hat represents a revolutionary advancement in brake rotor mounting technology. This innovative hat design eliminates traditional rotor bolts and allows rotors to move independently as they expand and contract through heat cycles, completely removing thermally-generated stress from rotor attachment points.

Key Features:

• Dynamic Lug Drive system eliminates rotor mounting bolts for independent thermal expansion
• Spring-loaded replaceable stainless steel inserts protect aluminum hat from wear
• Single large snap-ring retention system for quick rotor installation and removal
• Eliminates thermal distortion, pad knock back, and rotor drag
• Maintains consistent brake response and pedal feel throughout heat cycles
• Prevents bolt hole alignment issues when installing new rotors on used hats
• Lightweight aluminum construction reduces rotating mass

By allowing rotors to float independently of the hat assembly, this design keeps rotors flatter and truer throughout their service life. The stainless steel inserts in each lug-drive slot handle brake torque loading while protecting the aluminum hat material. Installation is simplified with no rotor bolts to torque or safety wire, making rotor changes faster and easier than conventional systems.