Image Item No. Description By  11208c01 (Inv)  Wheel 14mm D. x 9.9mm with Center Groove, Fake Bolts and 6 Double Spokes with Black Tire 21 X 9.9 (11208 / 11209) Catalog: Parts: Wheel & Tire Assembly 2  56902c01 (Inv)  Wheel 18mm D. x 8mm with Fake Bolts and Shallow Spokes with Black Tire 24mm D. x 7mm Offset Tread - Band Around Center of Tread (56902 / 61254) Catalog: Parts: Wheel & Tire Assembly 1