Bicycle Mechanics - Need to replace tire?
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I have a new bicycle that I have only ridden about 50 miles, and the front tube exploded one afternoon while the bicycle was in the garage. The explosion left a one inch long tear in the tube and it also tore a small piece of the side of the tire. The bead was okay, though. I (foolishly maybe) patched the tube and put it back on the wheel with the same tire. Then, I inflated to 20 psi, checked to make sure that everything looked okay, deflated the tire, and began inflating it to 100 psi. Around 80 psi, the tube exploded again exactly where the tire was damaged.
So my question is: does the tire look or sound like it needs replacement? I attached a picture of it.
Also, why would the tube randomly pop one afternoon when I was not riding it?
08-05-08, 11:54 AM
It looks like the wire is broken -- regardless, do you really want to be 10 miles from home, wearing spandex and cycling shoes on that tire? If it were mine, I'd replace it ....
08-05-08, 12:33 PM
Yes, you need a new tire. Tubes cannot explode while the tire is intact and well seated on the rim.
Your tube first exploded because the tire was either faulty or improperly seated.
The explosion was probably due to having a small part of the tube pinched between the tire bead and the rim (been there - done that). Yes, this type of failure can happen long after the tube was installed. It can happen if the tube is pinched between the tire bead and the bottom of the rim, doesn't have to be the side of the rim.
Unfortunately you need a new tire, the bead is blown off and it will never hold enough pressure.
I thought that the bead was the stiff wire that goes all around the tire, and that's still there. I'm probably wrong, though, but I'm learning.
Anyways, I did replace the tire and it works fine now :).
Lastly, does anyone think that I have a chance of getting the old tire warrantied? The bicycle is less than a month old, and I hadn't done anything to the tires and tubes myself before they exploded (except some inflation). If it really was a problem with their installation, then I think I should be able to get a free tire from the warranty.
08-06-08, 09:55 AM
Good luck getting a tire warranted. Depends on where you bought it and their policy. No harm in trying, but generally tires are not warranted. If the retailer won't help you, then ask the manufacturer, they will sometimes cave -- I got a Shimano rear dérailleur replaced that I totally smashed directly from Shimano USA. I went to the HQ and spoke to the XTR product manager who probably took one out of his sales samples to give me.
Try, you never know.
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