The R1 Concepts drilled black brake rotor is a replacement rotor that restores the braking surface with drilled holes and a black finish. It is specified for rear-right fitment on 1994–2004 Ford Mustang applications, presenting an application-specific rotor option to replace a worn rear disc and preserve correct rear brake fitment across those model years.

R1 94-04 Ford Mustang Rear Right Drilled Black Brake Rotor