The R1 Concepts drilled-and-slotted brake rotor for 2011–2018 BMW X4 (rear left) is a black-finished replacement rotor intended for its specified axle location. The drilled and slotted surface is provided as the rotor's friction pattern for routine stopping applications, and the black finish offers a coordinated appearance. Sold per wheel; confirm year and left-rear fitment before ordering.
R1 11-18 BMW X4 Rear Left Drilled & Slotted Black Brake Rotor