The R1 Concepts drilled-and-slotted black rear right brake rotor for 2017–2020 Acura MDX is a replacement rotor with drilled holes and slots and a black finish. Specified for the rear right wheel across those MDX model years, the description emphasizes the drilled-and-slotted styling and the clear vehicle application details included in the source text.
R1 17-20 Acura MDX Rear Right Drilled & Slotted Black Brake Rotor