The R1 Concepts slotted brake rotor is a black replacement rotor for front-left braking service. Offered as a single slotted rotor to replace the vehicle's front-left disc and restore a proper braking surface. The listing specifies Buick 2016–2020 Envision front-left applications, indicating the correct slotted rotor form and position for that fitment.
R1 16-20 Buick Envision Front Left Slotted Black Brake Rotor