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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 04-27-07, 04:31 PM   #1
Eli_Damon
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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?
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Old 04-27-07, 04:37 PM   #2
DevilsGT2
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Do you know if it's always blowing out at the same spot?
How big is this "single large hole"?


From what you said, it sounds like you may have a goofed up tube, they don't cost that much, get a new one and see if that fixes it.
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Old 04-27-07, 04:38 PM   #3
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Probably have a small hole in your side wall. Looking for it on the inside is easier.
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Old 04-27-07, 08:20 PM   #4
Eli_Damon
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Quote:
Originally Posted by adababy12
Probably have a small hole in your side wall. Looking for it on the inside is easier.
Good call. I have a slit in my tread almost 1cm long. I didn't notice a hole because I wasn't looking for a hole. Anyway, thanks.
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