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The R1 Concepts drilled brake rotor for 1978–1981 BMW 733i rear-left applications is a black-finished replacement rotor intended to fit the rear-left hub on those models. Its drilled face follows the cataloged specification and is offered to support accurate rear rotor renewal during service or restoration. This rotor is specified for owners maintaining authentic braking components on 733i vehicles from that range.
R1 78-81 BMW 733i Rear Left Drilled Black Brake Rotor
