Image Item No. Description  wheel2ac01 (Inv)  Train Wheel Spoked for Motor with Black Train Rim for 4.5V & 12V Locomotive Wheels (wheel2a / trainrim) Catalog: Parts: Wheel & Tire Assembly  6014ac01 (Inv)  Wheel 11mm D. x 12mm, Hole Round for Wheels Holder Pin with Black Tire 21mm D. x 12mm - Offset Tread Small Wide (6014a / 6015) Catalog: Parts: Wheel & Tire Assembly  50944pb01c03 (Inv)  Wheel 11mm D. x 6mm with 5 Spokes with Silver Outline Pattern with Black Tire 17.5mm D. x 6mm with Shallow Staggered Treads (50944pb01 / 42611) Catalog: Parts: Wheel & Tire Assembly