Parts list: № Number Qty Name Options 1 AL207671 2 Wheel TW23BX42, For Tire Size Refer to Tire Manual of Manufacturer Next page: ST746503 Steel Disk Rear Wheels, 2 Position, W16AX46, 40 km/h (25 mph) ST775751 Steel Disk Rear Wheels, Adjustable, 16 Position, DW12AX50 ST478257 Steel Disk Rear Wheels, 8 Position, DW23BX38 ST746564 Steel Disk Rear Wheels, 2 Position, DW23AX38 ST775844 Cast Rear Wheels, DW23AX42, Rack and Pinion Axle, 40 km/h (25 mph) ST775724 Steel Disk Rear Wheels, W/ Dual Rear Tires, 2 Position, MW20AX42 / DW20BX42 ST775732 Steel Disk Rear Wheels, 2 Position, DW16LX42 ST590899 Steel Disk Rear Wheels, 2 Position, TW23BX38, 335 mm Bolt Circle Diameter, W/ Reinforcement ST857435 Rear Wheel Weights, 2 Weights, Outside Rear Wheel, 250 kg (551 lb) ST478254 Steel Disk Rear Wheels, 8 Position, DW18LX42