Wilwood 170-14992 Big Brake Dynamic Lug Drive Rotor Hat

The Wilwood 170-14992 is a Big Brake Dynamic Lug Drive rotor hat featuring an innovative mounting system that revolutionizes brake rotor attachment. This advanced design eliminates traditional rotor bolts, allowing the rotor to move independently of the hat as it expands and contracts through heat cycles, completely removing thermally generated stress from the attachment points.

Key Features:

• Bolt-free Dynamic Lug Drive system allows independent rotor movement during thermal cycling
• Spring-loaded replaceable stainless steel inserts protect aluminum hat from wear during brake torque loading
• Single large snap-ring retains rotor for quick, tool-free assembly and installation
• Eliminates rotor warping, thermal distortion, and bolt hole alignment issues
• Maintains consistent brake response and pedal feel throughout heat cycles
• Prevents pad knock back and rotor drag caused by thermal stress
• Lightweight aluminum construction reduces unsprung rotating mass
• No torquing or safety wiring of rotor bolts required

This next-generation hat design solves all problems associated with traditional bolted rotor systems, including the common issue of bolt holes not aligning when installing new rotors on previously used hats. The rotors stay flatter and run truer, while the hats remain free from distortion caused by rotor thermal expansion and contraction.