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Title: hmmm.....
Review: I'll admit that I was in a bit of a hurry, but I'm not a terribly ham-fisted mechanic. The first time I inflated these tubes, when removing the pump from the valve stem, the entire stem pulled off of the tube. Obviously instant, unrepairable flat and a useless tube. My feeling is that the valve stem separated from the tube far too easily. Maybe I just got a bum tube, who knows.
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