The R1 Concepts drilled brake rotor for 1990–1991 Audi 90 Quattro (front left) is a black-finished replacement rotor intended for the front-left wheel. As a drilled configuration tailored to the listed application, it provides a straightforward option to replace a worn or damaged rotor and restore correct rotor fitment on the specified Audi 90 Quattro models.

R1 90-91 Audi 90 Quattro Front Left Drilled Black Brake Rotor