Provided is a test device for checking whether the position of a first circular through hole defined in a workpiece meets a tolerance requirement. In one embodiment, a motorcycle suspension assembly includes a shaft and at least two asymmetric bushings, with each bushing comprising an inner element and an outer element, with the outer element and inner elements constructed of different materials. A pointer biases the biasable medium layer at a position adjacent the pointer when the pointer is positioned proximate the touch surface.