... certificate is ECE,DOT,CCC and so on nner Tube 4.00-8 1. High quality and competative price2. Outstanding gas tightness3 ... follows:250-4, 300/350-4, 350/410-4, 350-5, 350-6, 300-8, 300-10, 350-8, 350-10, 400-5, 400-6, 400-8, 10 ... -19, 275/300-21, 350-16, 350-17, 350-18, 4.10-18, 90/90-18, 110/90-16, 130/90 ... -12, 120/70-12 etc. natural and Butyl inner Tube 4.00-8 tube