The maximum opening range is 200mm, suitable for hubs ranging from 55mm to 200mm, and the bracket is vertically suitable for wheels ranging from 16 inches to 29 inches. Made from aluminum alloy material, high strength, detachable base plate, and 4 blue linear sliding bearings used for the column, making the gear adjustment smoother. Included with the stand: Three dial indicators can detect the runout, Degree of deflection, and flatness of the brake disc rotor The fixed rod of the drum shaft wheel group is suitable for 12mm/15mm/20mm, and the length of the drum shaft rod is 25cm. It can be used for almost all the upper and lower ring platforms Spoke wrench, 10/11/12/13/14/15G (14/15G is frequently used, with 2 slots each and a total of 8 slots) included