The R1 Concepts Geo-Carbon drilled-and-slotted rotor for the rear left of 2003–2008 BMW Z4 models is offered as a replacement rotor featuring drilled holes and slots to help maintain pad bite and assist cooling during heavy braking. Specified for the Z4 rear left application, it’s intended for routine brake maintenance or rotor replacement on the listed Z4 years.
R1 03-08 BMW Z4 Rear Left Drilled & Slotted Geo-Carbon Rotor