The R1 Concepts drilled-and-slotted brake rotor is a black replacement specified for the rear-left position on 1981–1986 BMW 735i. The listing identifies the rotor as drilled and slotted and finished in black for that application. Verify the model year range and rear-left designation before ordering to make sure the part fits your 735i.
R1 81-86 BMW 735I Rear Left Drilled & Slotted Black Brake Rotor