Parts list: № Number Qty Name Options 1 AL170041 2 Rim DW18LX38, For Tire Size Refer to Tire Manual of Manufacturer Next page: ST923354 Steel Disk Dual Rear Wheels, 2 Position, DW18AX42, 335 mm Bolt Circle Diameter ST709295 Steel Disk Rear Wheels, 2 Position, TW23BX38, 275 mm Bolt Circle Diameter, W/ Reinforcement ST897160 Steel Rear Wheels, Adjustable, 16 Position, TW23BX38, 275 mm Bolt Circle Diameter ST840008 Cast Rear Wheel Rims, TW16LX46, Rack and Pinion Axle ST950683 Rear Wheel Weights, 2 Weights, Outside Rear Wheel, W/ Guide Pin, 100 kg (220 lb), Attachment ST1052622 Steel Disk Rear Wheels, 2 Position, TW16LX42, 335 mm Bolt Circle Diameter ST816429 Rear Wheel Weights, 4 Weights, Outside Rear Wheel, 72 Kg (159 lb) / 205 kg (452 lb) ST737735 Cast Rear Wheels, WH10AX54, Rack and Pinion Axle ST994187 Steel Disk Front Wheels, 16 Position, TW18LX28, 335 mm Bolt Circle Diameter ST965642 Mounting Parts, Front Wheel, Tread Adjustment, 60 Inch, Attachment