The EBC 14-17 BMW 228 Coupe BSD Rear Rotors are a high-performance, direct-fit replacement rotor for the BMW 228 Coupe. The rotors are designed with EBC's patented BSD (Brake Shudder Eliminator) technology, which helps to reduce brake shudder and improve braking performance. The rotors are made from high-grade cast iron and feature a black zinc plating for corrosion resistance. They are designed to fit perfectly with the OEM calipers and pads, and are designed to offer superior braking performance and long-lasting durability.