[Name] KENDA Kenda 20-inch 1.25 / 1.5 folding bike inner tubes?
[Specification] 20 * 1.25-1.5?
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[Gas nozzle type] US mouth?
[Gas nozzle length] 32mm?
1 for 20-inch, the width of the tire in the range of 1.25 to 1.5 supporting the use. (Eg tire model 20 * 1.25,20 * 1.5) on the choice of this size tube)?
Comrades, inner tubes before buying, please note:?
1 Some riders said: "I put the tube fitted to the car, just did not ride one day, how tire of it, this tube quality too much garbage ...." Note: The difference is not a tubeless tire quality, your tire pierced, or debris inside your tire, or you do not have installed, damage inner tubes, tire rolling tires is to look at the character of Oh?
2: Some riders said: "how the gas tube played, how it expands uneven quality bad, right?" Note: This is what you did in high school physics class lectures, it was because the rubber gas nozzle at is a little thick, and the remaining part is a little thin, and different thickness, by the same pressure, swelling the size of the course, it is not the same?
3: There are riders, said: "how I was playing last night, gas tube, drain finished this morning on" Note: In addition to the first reason, there is your valve core is too loose and needed tightening?
How to properly test tube received there is no problem: play a little air, and then into the water to see if there is no leak. But the treasurer to sell so long tube, there is a problem not useful on an estimate of one thousand