Parts list: № Number Qty Name Options 1 AL218209 2 Wheel TW20BX42, For Tire Size Refer to Tire Manual of Manufacturer Next page: ST827634 Steel Disk Front Wheels, 2 Position, W15LX28, 335 mm Bolt Circle Diameter ST950675 Rear Wheel Weights, 2 Weights, Outside Rear Wheel, W/ Guide Pin, 100 kg (220 lb) / 250 kg (551 lb) ST827797 Steel Disk Front Wheels, 8 Position, W15LX28 ST708288 Steel Disk Rear Wheels, 2 Position, TW23BX38, 275 mm Bolt Circle Diameter ST1021644 Cast Rear Wheel Rims, MW20BX38, Rack and Pinion Axle, 814 mm Bolt Circle Diameter ST938177 Wheel Weights, Inner, Dual Rear, 72 Kg(159 lb) and 2 X 205 kg(452 lb) ST901909 Steel Disk Front Wheels, 8 Position, W18LX28, W/ Wide Tread Setting ST737742 Steel Disk Rear Wheels, 16 Position, DW10X50, 275 mm Bolt Circle Diameter ST478254 Steel Disk Rear Wheels, 8 Position, DW18LX42 ST978034 Hub Extension, 60 mm, Front, Tread Adjustment, Attachment