... , high airtightness motorcycle inner tube ModelweightRubber contentPulling strengthTensile strengthAir valve 2.75-17 420g15%~55%9Mpa-10Mpa380%-550%TR4 About Product:1 ... and inner tube :2.25-17 ,2.50-17 ,2.75-17 ,2.50-18 ,3.00-18 ,3.25-18 ,2.50-14 ,2.75-18 ,3 ... -8 ,3.00-10 , 3.50-8 ,3.25-16 , 2.75-21 ,3.50-17 ,3.50-16 ,90/90-18 ... 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 ...