1.New technology 2.New formula 3.New structure 4.heat-resisting, aging resistance 5.Highly Tear Resistant, high airtightness motorcycle inner tube ModelweightRubber contentPulling strengthTensile strengthAir valve20*1.95/2.125 240g15%~55%9Mpa-10Mpa380%-550%TR1 About Product:1.tension strength between 8-11mpa is available2.elongtion rate:500%,530%,560%,600%,630%2.factory supplier with competitive ...