Parts list: № Number Qty Name Options 1 AL207671 2 Wheel TW23BX42, For Tire Size Refer to Tire Manual of Manufacturer Next page: ST478257 Steel Disk Rear Wheels, 8 Position, DW23BX38 ST478214 Steel Disk Rear Wheels, 2 Position, TW23BX38 ST737731 Cast Rear Wheels, DW16LX46, Rack and Pinion Axle ST995991 Rear Wheel Weights, 2 Weights, Outside Rear Wheel, 72 kg(159 lb) and 205 kg(452 lb) ST590894 Steel Disk Rear Wheels, 2 Position, TW20BX42, 335 mm Bolt Circle Diameter, W/ Reinforcement ST827834 Steel Disk Front Wheels, 8 Position, DW18LX30, 335 mm Bolt Circle Diameter ST844916 Steel Disk Front Wheels, 16 Position, DW13X34, 335 mm Bolt Circle Diameter ST775854 Cast Rear Wheels, MW23AX38, Rack and Pinion Axle, 50 km/h (31 mph) ST857396 Attachment, Rear Wheel Weight Adapters, 275 mm Bolt Circle Diameter ST980771 Cast Rear Wheel Disk, Rack and Pinion Axle, 100 mm Diameter, W/ Dual Rear Wheels