Parts list: № Number Qty Name Options 1 AL156778 1 Extension (Bolt Circle Diameter = 275 mm) Next page: ST994195 Steel Disk Rear Wheels, 16 Position, TW18LX38, 203 mm Bolt Circle Diameter ST528620 Valve, Tubeless Tires ST709673 Front Wheels, Adjustable, 16 Position, W15LX28 ST762045 Steel Disk Front Wheels, 16 Position, W10X32, 275 mm Bolt Circle Diameter ST762050 Steel Disk Rear Wheels, 16 Position, W10X48, 275 mm Bolt Circle Diameter ST950671 Rear Wheel Weights, 2 Weights, Outside Rear Wheel, W/ Guide Pin, 100 kg (220 lb) ST926641 Attachment, Additional Rear Wheel Weights, 110 kg (242.5 lb) ST857427 Rear Wheel Weight Mounting Parts, Adapter 335 mm Bolt Circle Diameter ST709633 Steel Disk Front Wheels, 16 Position, W15LX24 ST813002 Hub Extension, 30 mm, Rear, Tread Adjustment, Attachment