The R1 Concepts Geo-Carbon drilled-and-slotted rotor for the front left of 2011–2016 BMW 528i is a position-specific replacement intended for those model years. The drilled and slotted braking surface with Geo-Carbon design supports better heat dispersion and helps keep the pad surface clear for consistent stopping performance under normal driving conditions.
R1 11-16 BMW 528I Front Left Drilled & Slotted Geo-Carbon Rotor