Parts list: № Number Qty Name Options 1 AL207671 2 Wheel TW23BX42, For Tire Size Refer to Tire Manual of Manufacturer Next page: ST775840 Cast Rear Wheels, W12AX54 ST775981 Rear Wheels, Rack and Pinion Axle, DW15AX50 ST976375 Rear Wheel Weights, 4 Weights, Outside Rear Wheel, 205 kg (452 lb) ST950683 Rear Wheel Weights, 2 Weights, Outside Rear Wheel, W/ Guide Pin, 100 kg (220 lb), Attachment ST992999 Steel Disk Rear Wheels, 2 Position, TW25BX42, 335 mm Bolt Circle Diameter (964999 - ) ST827834 Steel Disk Front Wheels, 8 Position, DW18LX30, 335 mm Bolt Circle Diameter ST1021549 Cast Rear Wheel Rims, TW16LX46, Rack and Pinion Axle ST964569 Steel Disk Front Wheels, 16 Position, TW20BX28, 335 mm Bolt Circle Diameter