The R1 Concepts Geo-Carbon drilled and slotted rotor for 1999–2006 BMW 328i (rear left) is a rear-left replacement rotor specified for that BMW range. It presents a Geo-Carbon friction surface with drilled holes and slots machined into the braking face. Specified for the listed application, this rotor is intended as the rear-left replacement option during routine brake service or rotor replacement on the indicated vehicles.
R1 99-06 BMW 328I Rear Left Drilled & Slotted Geo-Carbon Rotor