Wilwood Bobbin MT CSiC Rotor/Hat Assy 15.00x1.25

The carbon-ceramic composite material, known as C/SiC, used in these Wilwood rotor and hat assemblies offers a significant advantage for high-performance braking. This advanced composite provides higher thermal conductivity and heat capacity compared to conventional iron or titanium rotors, even those of similar or greater weight. This means the rotors can handle extreme temperatures more effectively, which is crucial for preventing issues like distortion, warping, cracking, and excessive wear under demanding conditions.

Wilwood's lug-drive mounting system is a key design choice here. Instead of traditional rotor bolts, a single internal snap-ring holds the rotor to the hat. This setup allows the rotor to expand and contract independently from the hat as it heats up and cools down. By isolating the rotor from the hat during these thermal cycles, all the stress that would normally build up at the attachment points is eliminated. The result is rotors that stay flatter and run truer over time, maintaining consistent braking performance even after repeated hard use.

This assembly is pre-packaged with Wilwood's latest technology, making it a straightforward way to integrate their advanced braking components. The 15.00-inch diameter and 1.25-inch thickness are substantial, designed for applications that require serious stopping power. While this specific assembly doesn't include hardware for mounting to the caliper or vehicle, it represents a significant upgrade in thermal management and rotor stability for your braking system.