The R1 Concepts Geo-Carbon drilled and slotted rotor is a direct-fit replacement rotor finished in Geo-Carbon with drilled and slotted machining for pad cleaning and debris clearance. It is listed for front and rear right positions on Blue Bird Bus All American FE models with hydro brakes for 1989–2022, provided as a matching disc brake replacement.
R1 89-22 Blue Bird Bus All American Fe (Hydro Brakes) Rear/Front Right Drill & Slot Geoperf Rotor