Image Item No. Description  56145c08 (Inv)  Wheel 30.4mm D. x 20mm with No Pin Holes and Reinforced Rim with Light Bluish Gray Tire 56 x 26 Tractor (56145 / 70695) Catalog: Parts: Wheel & Tire Assembly  56908c07 (Inv)  Wheel 43.2mm D. x 26mm Technic Racing Small, 6 Pin Holes with Black Tire 81.5 x 29 (56908 / 2491) Catalog: Parts: Wheel & Tire Assembly  84772c01 (Inv)  Wheel 62.3mm D. x 20.3mm Technic with Dark Bluish Gray Tire 100.6 x 28 (84772 / 4456) Catalog: Parts: Wheel & Tire Assembly  4624c05 (Inv)  Wheel 8mm D. x 6mm with Black Tire 14mm D. x 4mm Smooth Small Single with Number Embossed on Side (4624 / 59895) Catalog: Parts: Wheel & Tire Assembly  3464c03 (Inv)  Wheel Center Small with Stub Axles (Pulley Wheel) with Black Tire 14mm D. x 4mm Smooth Small Single with Number Embossed on Side (3464 / 59895) Catalog: Parts: Wheel & Tire Assembly