The R1 Concepts Geo-Carbon drilled and slotted brake rotor for 2021–2025 Audi Q4 e-tron (front left) is a replacement rotor featuring drilled holes and machined slots with a Geo-Carbon surface. It is specified for the left-front position on the listed Q4 e-tron model years and provides the drilled-and-slotted rotor profile identified in the product description for that electric vehicle application.
R1 21-25 Audi Q4 E-Tron Front Left Drilled & Slotted Geo-Carbon Rotor