The R1 Concepts slotted black brake rotor for the left-front position on Mazda 3 (2019–2021) is a direct replacement sold as a single rotor. It provides the slotted face and black finish specified for that wheel location to support like-for-like replacement. Ideal when servicing the left front rotor; verify fitment against your model year and trim before installation.
R1 19-21 Mazda 3 Front Left Slotted Black Brake Rotor