The R1 Concepts Geo-Carbon drilled-and-slotted brake rotor is intended for the rear right position on 2015–2023 Ford Mustang models. Its drilled-and-slotted face and Geo-Carbon designation describe the rotor's pattern and appearance, and the overview states rear-right fitment and supported years to help shoppers select the correct drilled-and-slotted rotor for their Mustang.
R1 15-23 Ford Mustang Rear Right Drilled & Slotted Geo-Carbon Rotor