... .Competitive price,good quality solid wheel/barrow wheel 350-4 Wheel choice:While choosing a wheel, you’d consider several elements ... bearing diameter etc.Commonly: a wheel includes: tyre+tube+rim+bearing=wheel Tires: different tire layer: 2pr/4pr/6prTubes:natural ... butyl rubber tube,tyre,motorcycle tyre,rubber wheel,solid wheel,solid and crumb wheel,foaming wheel,rubber productsTrade Terms: FOB, CIF, ...