... wheel, you’d consider several elements: what size and load, pneumatic or solid, or semi-pneumatic, steel or plastic rim, hub ... length, bearing diameter etc.Commonly: a wheel includes: tyre+tube+rim+bearing=wheel Tires: different tire layer ... butyl rubber tube,tyre,motorcycle tyre,rubber wheel,solid wheel,solid and crumb wheel,foaming wheel,rubber productsTrade Terms: FOB, CIF, ...