The R1 Concepts Geo-Carbon drilled and slotted rotor for 2017–2026 BMW Alpina B8 Gran Coupe, rear left position. A direct-fit replacement featuring Geo-Carbon surface treatment with drilled and slotted machining to aid debris and moisture clearance while supporting consistent pad seating. Intended for the rear-left wheel on specified Alpina B8 Gran Coupe years as a service or upgrade rotor.
R1 17-26 BMW Alpina B8 Gran Coupe Rear Left Drilled & Slotted Geo-Carbon Rotor