Parts list: № Number Qty Name Options 1 AL156778 1 Extension (Bolt Circle Diameter = 275 mm) Next page: ST843735 Steel Disk Front Wheels, 16 Position, W10X28 ST744255 Hub Extension, 94 mm, Rear, Tread Adjustment, Attachment ST994195 Steel Disk Rear Wheels, 16 Position, TW18LX38, 203 mm Bolt Circle Diameter ST861018 Rear Wheel Weights, 2 Weights, 100 kg (220 lb), Attachment ST762053 Steel Disk Rear Wheels, 16 Position, DW10X46, 275 mm Bolt Circle Diameter ST709632 Steel Disk Front Wheels, 16 Position, W12X24 ST994193 Steel Disk Rear Wheels, 2 Position, TW18LX34, 203 mm Bolt Circle Diameter ST994192 Cast Rear Wheels, TW18X38, Rack and Pinion Axle, 787 mm Bolt Circle Diameter ST983289 Steel Disk Rear Wheels, 16 Position, TW23BX38, 275 Bolt Circle Diameter ST976052 Rear Wheel Weights, 2 Weights, Outside Rear Wheel, 205 kg (452 lb)