The R1 Concepts Geo-Carbon drilled-and-slotted rotor for the front left of 2011–2016 BMW Z4 is a direct-position rotor for those model years. The drilled and slotted surface and Geo-Carbon treatment aid in heat control and pad cleaning to preserve consistent brake response. This overview reflects the explicit front-left Z4 application specified in the product text.
R1 11-16 BMW Z4 Front Left Drilled & Slotted Geo-Carbon Rotor