The R1 Concepts Geo-Carbon drilled-and-slotted rotor is a Geo-Carbon replacement brake rotor finished with drilled holes and slots. This rotor is specified for front left fitment on 1991–1996 Buick Roadmaster models and is intended as the correct direct replacement for the factory front left disc on those vehicles.
R1 91-96 Buick Roadmaster Front Left Drilled & Slotted Geo-Carbon Rotor