A test apparatus for testing a suspension element for a vehicle, including a wheel test spindle and a road simulation drum that is rotated by a motor is disclosed. The suspension element comprises a wheel and a tire. The wheel test spindle may be supported on a carrier assembly. The road simulation drum includes a chuck hole recess that may be provided in a replaceable module comprising a portion of the outer surface of the drum. The motor rotates the drum causing the tire and wheel to rotate on the test spindle to roll against the outer surface of the drum and through the chuck hole recess.