butyl/natural inner tube 400-8 1.Model:400-8 Weight:0.5kg 2.High rubber content 3.Prompt delivery 4.Competive price butyl/natural inner tube ... to our factory.1.Motorcyle tyre size: 325-16,300-17,300-16,300-18,275-14,275-17,275-18,250-18,350-10,100/90-10,300-8,400-8,400-12 etc.2 ... ,300-17,300-18,325-16,325-18,110/90-16,275-17,350-18,400-10,400/450-12,500-12,400/450-14,300-10,350-10,350-8,400-8 etc.3 ...