The R1 Concepts drilled black brake rotor for the rear left of 1998–2015 Mazda 6 is a vehicle-specific rotor intended for the rear-left wheel position. The description identifies a drilled face and black finish for the rear-left application, marking this part for brake maintenance or replacement on the specified Mazda 6 model years to restore the braking surface.
R1 06-15 Mazda MX-5 Miata Rear Left Drilled Black Brake Rotor