The R1 Concepts Geo-Carbon drilled-and-slotted rotor is a replacement rotor intended for the front-left wheel of 2010-2025 Buick Regal applications as listed. The description names a Geo-Carbon rotor with drilled and slotted surfaces offered by R1 Concepts and specifies the front-left position. This overview reflects the explicit fitment text and presents the rotor as the front-left unit matching the Regal model years referenced.
R1 10-25 Buick Regal Front Left Drilled & Slotted Geo-Carbon Rotor