Wilwood 170-16936 Big Brake Dynamic Lug Drive Disc Brake Rotor Hat

The Wilwood 170-16936 is a Big Brake Dynamic Lug Drive Rotor Hat featuring Wilwood's advanced bolt-free rotor mounting system engineered to eliminate the thermal stress and distortion problems common with traditional fixed-mount designs. Precision machined from premium-grade aluminum alloy, this hat delivers high strength with reduced unsprung and rotating weight.

Dynamic Lug Drive Technology:

• Eliminates rotor bolts — the lug drive system allows rotors to float independently, expanding and contracting freely through heat cycles without transferring thermal stress to the hat
• Removes all thermally generated stress from rotor attachment points, keeping rotors flatter and running truer
• Consistent brake response and pedal feel — thermal distortion no longer compromises braking performance
• Eliminates pad knock-back and rotor drag associated with a distorted or warped rotor
• Protects the aluminum hat with spring-loaded, replaceable stainless steel inserts in each lug-drive slot, shielding the aluminum from wear caused by rotor loading under brake torque
• Solves bolt hole alignment issues — thermal distortion on previously used hats no longer prevents clean re-installation of new rotors

The Wilwood Big Brake Dynamic Lug Drive Hat is the ideal solution for high-performance street and competition applications where repeated hard braking and extreme heat cycles demand a rotor mounting system that maintains precision and reliability over time.