Abstract: An apparatus for cleaning the rim of a vehicle which including a buffer wheel head mounted adjacent a wheel mounting device and being pivotable toward the rim about a first axis which is parallel to the axis of rotation of the wheel. The buffer wheel head includes a pair of buffer wheel mounted on a drive shaft in the buffer wheel head, at least one of the buffer wheels being axially adjustable on the shaft so that the pair of buffer wheels can be positioned immediately within the side flanges of the rim. The head is pivotally about another axis spaced from and perpendicular to the first axis so as to allow the pair of buffer wheels to swivel to turn the buffer wheels at a slight angle relative to the side flanges first to one side and then to the other to thereby simultaneous engage both flanges with an enhanced buffing action.