The R1 Concepts drilled black brake rotor for 2000–2010 Westward Industries GO-4 (rear right) is a drilled, black-finish replacement specified for the rear-right position on those model years. This rotor matches the described drilled design and coating and is intended for use when renewing the rear-right brake rotor on the listed GO-4 applications.

R1 00-10 Westward Industries GO-4 Rear Right Drilled Black Brake Rotor