The R1 Concepts drilled-and-slotted brake rotor for 2014–2020 Acura RLX (rear left) is a black-finish replacement rotor specified for the rear-left wheel. It provides the drilled-and-slotted braking surface for that position and serves as the proper replacement when servicing or replacing the rear-left rotor on compatible 2014–2020 RLX models.
R1 14-20 Acura RLX Rear Left Drilled & Slotted Black Brake Rotor