The R1 Concepts drilled brake rotor for 1971–1974 BMW 3.0 CS front-left applications is a black-finished replacement rotor intended to fit the front-left hub of those models. The drilled face corresponds to the cataloged specification and is offered for routine rotor replacement during restoration or maintenance. It’s specified for owners preserving authentic braking components on 3.0 CS cars.
R1 71-74 BMW 3.0CS Front Left Drilled Black Brake Rotor