1,Provide natural and butyl inner tube with different quality. 2,Various size inner tube for you to ... , We main produce natural and butyl inner tube and flaps with tensile strength 7Mpa,8Mpa,10.7Mpa,13Mpa.14.7Mpa and ... ,Chinese.Similarly, here, for your choice. SIZE: 28*1 5/8 * 1 3/8 12X1.75-2.125,16X1.75-2.125,18X1 ... -2.125,12 1/2X2 1/4,24X1 3/8,26X1 3/8,27X1 1/4,28X1 1/2,24X1,26X1,26X2X1 ...