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 400 ... quality, competitive price. Welcome to our factory.1.Motorcyle tyre size: 325-16,300-17,300 ... ,350-10,100/90-10,300-8,400-8,400-12 etc.2.Motorcycle inner tube size ... -16,275-17,350-18,400-10,400/450-12,500-12,400/450-14,300-10,350 ...