The R1 Concepts drilled black brake rotor is a replacement rotor that restores the braking surface with a drilled pattern and a black finish, presented in shopper-facing language for clarity. It is specified for front-left use on 1987–1993 Ford Mustang applications, giving an application-focused option when replacing a worn front disc.
R1 87-93 Ford Mustang Front Left Drilled Black Brake Rotor