The R1 Concepts drilled rear-left brake rotor for 1990–1993 Mazda Miata is a black-finish replacement rotor made to restore rear-left braking surface and function for those model years. Its drilled face aids venting and helps manage heat buildup during repeated stops, contributing to steadier braking behavior. Confirm rear-left fitment for 1990–1993 Miata applications before ordering.
R1 90-93 Mazda Miata Rear Left Drilled Black Brake Rotor