Parts list: № Number Qty Name Options 1 AL225063 2 Wheel DW18LX38, For Tire Size Refer to Tire Manual of Manufacturer Next page: ST879368 Steel Disk Rear Wheels, 16 Position, DW20BX38 ST1021536 Cast Rear Wheel Rims, W16LX38, Rack and Pinion Axle ST857420 Attachment, Rear Wheel Weight Adapters, 335 mm Bolt Circle Diameter ST945705 Steel Rear Wheels, Adjustable, 16 Position, TW15LX38, 275 mm Bolt Circle Diameter ST746905 Steel Disk Rear Wheels, 2 Position, W18AX42 ST806383 Steel Disk Rear Wheels, 16 Position, W12X48, 275 mm Bolt Circle Diameter ST746570 Steel Disk Rear Wheels, 2 Position, W16AX46, 50 km/h (31 mph) ST744255 Hub Extension, 94 mm, Rear, Tread Adjustment, Attachment ST861018 Rear Wheel Weights, 2 Weights, 100 kg (220 lb), Attachment ST926936 Mounting Parts, Rear Wheel, W/ Reinforcement Disk