Parts list: № Number Qty Name Options 1 AL214650 2 Wheel DW20BX28, For Tire Size Refer to Tire Manual of Manufacturer Next page: ST746503 Steel Disk Rear Wheels, 2 Position, W16AX46, 40 km/h (25 mph) ST926630 Attachment, Rear Wheel Weights, 1100 kg (2425 lb) ST775735 Front Wheels, 2 Position, W10HX20 ST744251 Hub Extension, 219 mm, Front, Tread Adjustment, Attachment ST857440 Rear Wheel Weights, 2 Weights, Outside Rear Wheel, 100 kg (220 lb) ST950679 Rear Wheel Weights, 2 Weights, Outside Rear Wheel, W/ Guide Pin, 250 kg (551 lb) ST840003 Cast Rear Wheel Rims, W18LX38, Rack and Pinion Axle ST1021544 Cast Rear Wheel Rims, TW20BX42, Rack and Pinion Axle ST709330 Steel Disk Rear Wheels, 16 Position, TW20BX42, 275 mm Bolt Circle Diameter, W/ Reinforcement ST976375 Rear Wheel Weights, 4 Weights, Outside Rear Wheel, 205 kg (452 lb)