The R1 Concepts Geo-Carbon drilled-and-slotted rotor for the front left of 2009–2016 BMW Z4 is a direct-fit replacement sized for that wheel position. The drilled and slotted surface with Geo-Carbon construction assists heat management and pad cleaning during routine and spirited use. This overview reflects the explicit front-left Z4 application declared in the product description.
R1 09-16 BMW Z4 Front Left Drilled & Slotted Geo-Carbon Rotor