The R1 Concepts Geo-Carbon drilled and slotted rotor is a front replacement rotor featuring a Geo-Carbon finish and drilled-and-slotted faces. It is specified for 2017–2019 Audi A4 Quattro applications in the front left position and intended as the correct rotor when renewing or servicing front brake components on those models.
R1 17-19 Audi A4 Quattro Front Left Geo-Carbon Rotor