The R1 Concepts drilled-and-slotted brake rotor is a black replacement rotor intended for the rear-left position on 1982–1989 BMW 633CSi. The catalog entry specifies a drilled and slotted braking surface and a black finish for that application. Check the listed year range and rear-left position against your vehicle to ensure proper fitment before purchase.
R1 82-89 BMW 633CSI Rear Left Drilled & Slotted Black Brake Rotor