... Tear Resistant, high airtightness motorcycle inner tube ModelweightRubber contentPulling strengthTensile strengthAir valve20*1.95/2.125 240g15%~55%9Mpa-10Mpa380%-550 ... All size are available :Tyre and inner tube :2.25-17 ,2.50-17 ,2.75-17 ,2.50-18 ,3.00-18 , ... 00-8 ,90/90-18 ,3.00-12 , 16x2.125 ,3.50-5,16x6.50-8 ,13x5.00-6 , ... 3.50-4 , 2.50-10 ,3.50-6 ,3.50-4 ,3.00-4 , and so on durable bicycle inner tube