Join Date: May 2006
Location: Alexandria, VA (formerly Amherst, MA)
Bikes: Miyata touring bike, Xtracycle, Montague DX
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tire keeps blowing out
A few days ago, I hit a pothole, I thought there was no effect at first but about fifteen seconds later, I heard an explosion sound and realized that all of the air had just left my tire very quickly. "No problem," I thought. I patched up the tire and reinflated it. I noticed that it was not a "snake bite", but a single large hole. I only had a portable pump so couldn't inflate it to full pressure but it was enough to get me home. This morning, I pumped it up to full pressure and it immediately blew out again.
I have tried patching it several more times and each time, it blows either immediately or within a few minutes and this is without ever putting it back on the bike. I have checked the rim and the tread for anything that might poke through the tube but have found nothing. I have tried reducing the pressure to which I inflate the tube. The tread is rated to 110psi and the last time I patched and reinflated the tube, I only inflated it to a pressure of 80psi.
Do you guys have any idea of what is causing this problem?