The EBC Brakes RK2068R BMW OE Replacement Smooth Rear Disc 2-Piece Brake Rotors are high-quality brake disc rotors. They are for the rear wheels and are 345mm in. They fit BMW 430i, 428i, 320i, 328i, and 330i and others. MAKE SURE “RK2068R” IS COMPATIBLE WITH YOUR VEHICLE (look up part w/ VIN #)