The R1 Concepts slotted brake rotor is a black replacement rotor for rear-right braking service. Supplied as an individual slotted rotor intended to replace the rear-right brake disc and restore a proper braking surface. The product listing specifies Buick 2016–2018 Envision rear-right applications, showing the intended fitment and rotor position for this part.
R1 16-18 Buick Envision Rear Right Slotted Black Brake Rotor