... inner tube ModelweightRubber contentPulling strengthTensile strengthAir valve20*1.95/2.125 240g15%~55%9Mpa-10Mpa380%-550%TR1 About Product:1. ... 2.75-18 ,3.00-17 , 3.25-17 ,3.50-10 ,2.25-14, 3.00-10 ,4.00-10 ... 8 ,90/90-18 ,3.00-12 , 16x2.125 ,3.50-5,16x6.50-8 ,13x5.00-6 , 12 1/2 x ... 2 1/2 , 315x55 , 110/50-6.5 ,2.50-8 ,12 1/2 x 1.75 , 9 ... x 3.50-4 , 2.50-10 ,3.50-6 ,3.50-4 ,3.00-4 , and so ...