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Tire problem

Tire problem

I wonder if anyone else has had a similar problem. Bought a 700x23 in Aug. '13 and had a sudden blowout in less than 100 miles.  Put in two successive tubes and each blew out immediately when getting up near 100# pressure. Had to be sagged home - fortunately only 5-6 miles. Carefully searched the rim for sharp object, etc. and found nothing. Another tube in, pumped to 100#, and it blew after a few hours. Finally found that sidewall had a 5 mm crack close to the bead through which the tube protruded.  LBS gave me credit for it and replaced it with another Gatorskin, a 700x25 this time.  No problems for 5 months and 2000 miles, until it blew a tube and for the same reason - a 5 mm slit just below in 'N' in Gatorskin on one side.  LBS said it was still under warranty, so I took the credit against a Continental Four Seasons this time and hope not to see the same or any problem with this one.

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Re: Tire problem

Yours is a tire defect problem, mine?  I never figured it out.
I rode out to Glenelg from Columbia for one of our Tues/Thurs evening hammerfests several years ago.  Within a couple of miles of the school, I got a front flat.  Quickly put in a tube  and frame pump air and got to the school on time to meet the rest.  Borrowed a floor pump to get up to 100# and as it approached that, the tube exploded.  I put in a borrowed third tube while everyone waited, this time checking the rim and tire carefully but no spokes sticking out and nothing in the tire I could find.  As I got near 100# again, boom!  They left and I got sagged.  At home, I took everything apart, examined in detail and put in another tube and never (NEVER) had another problem with the wheel to this day.

At least you know what was wrong with yours, I never knew!  SL

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Re: Tire problem

You might want to check the accuracy of your pump's pressure gauge. They are notoriously inaccurate.
I've  been using Contis for 20 years easily and have never had a failure of a tire although they weren't Gatorskins.
I guess it's possible they had bad batch or maybe they were very old stock?

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Re: Tire problem

Did your LBS check with his distributer about a defective batch of tires? Last year, Bontrager recalled a run of its' tubeless tires. I had four of them and the two I was riding developed large bulges but no blowouts on one ride. No problems until this one(last) ride with these tires. The Bontragers all have serial numbers per batch and they recalled all of the tires with a certain serial number.
I would doubt that you over inflated the tire; most tires have a large safety margin for high pressures--up to 160 psi. I would doubt your pump's gauge is that far off..
Were the two tire failures on the same wheel? You checked the wheel rim lip which takes the tire bead for any sharp edges? Any chance your tire iron may have cut the tire in the mounting? If the answers to all of  these questions is no, then I say that you got  defective tires . Back to asking the LBS about a bad run of Conti's. Or his distributer unloaded some old tires.

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