... 4.Competitive price butyl inner tube 400-8 Product DescriptionOur factory is professional in producing motorcycle/wheelbarrow tyre and tube with high ... capacity:200,000 pcs/monthInner tube material: natural rubber/butyl rubberProducts:inner tube,natural rubber tube,butyl rubber tube,tyre,motorcycle tyre,rubber wheel,solid ... ,300-8,400-8,400-12 etc.2.Motorcycle inner tube size:185-17,200-17,225-17,250- ...