Zimmermann Disc Brake Rotor - 100124452: Zimmermann Disc Brake Rotor - 100124452 is a high-performance brake rotor designed to provide superior braking performance and long-lasting durability. It is made from high-grade cast iron for superior strength and heat dissipation. It features a special coating for corrosion resistance and improved brake performance. It is designed to fit a variety of vehicles and is backed by a limited warranty.