The R1 Concepts drilled black brake rotor is a vehicle-specific replacement for Mazda 3 applications from 2019–2021, intended for the front left position. The product description notes a drilled braking surface and a black finish. This overview highlights the left-front orientation and covered model years so buyers can identify the correct rotor for front-end brake service or replacement on the listed Mazda 3.

R1 19-21 Mazda 3 Front Left Drilled Black Brake Rotor