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Old 06-30-2011, 02:44 AM   #1
storksb
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Tire Bulge

Got 600 miles in on my new bike, today on the comute home the front tire developed a bulge which caused the tire to rub against the forks. There is no physical damage to the tire that I can see, any thoughts on the cause? The tire is a Michellin Dynamic 700 x 23c.

Does any one think i might be able to warranty it?

Simon



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Old 06-30-2011, 04:54 AM   #2
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Maybe but I doubt it and likely not worth the time. With the bulge though, by all means replace it



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Old 06-30-2011, 12:37 PM   #3
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I think a warranty claim is in order. It might be as simple as calling them up and telling them what happened (Michelin Bicycle USA - A better way forward®), or if you bought the bike locally, talk to the shop about replacing it and see if they'll handle the warranty issue. That seems like really low mileage to develop a bulge in the sidewall. I know when I had an issue with a CamelBak bottle, the LBS swapped it out with me and they handled the claim.

Definitely don't ride it, though. A bulge indicates a weak spot in the structure. With only 600 miles, and if you don't see any damage on the outside of the tire in that area, this is definitely a manufacturing defect, IMO.

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Old 06-30-2011, 12:50 PM   #4
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Your bike is just happy to see you.

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Old 06-30-2011, 01:36 PM   #5
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Your bike is just happy to see you.
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Old 06-30-2011, 11:23 PM   #6
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I heard back from Michellin today, they want me to take it to the dealer and have them call Michelin customer service and take it from there. I'll try and do that next week. In the mean time I'll put the previously removed original rear tire on the front. I swapped this out about 3 weeks ago as I was getting regular punctures on the back and put a Gatorskin on. No punctures since. Would put a gatorskin on the front too but no puncture problems there and would rather not spend another $50 for a tire just yet.

Thanks

Simon

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Old 07-01-2011, 12:53 AM   #7
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Simon sounds like Michellin is at least trying to be fair. Some could have just blown it off as a road hazard. When the tire is off, don't forget to recheck everything to make sure nothing is amiss to cause more problems.

Let us know how they treat you. A dealer should be able to look at it, maybe email a picture, and get someone to make a call. Still if I were Michellin and a customer had a bulging tire; I'd give them a tire to get that tire back to examine it. I'd want to see if I could determine the cause of the bulge, but I don't have to answer to stockholders either.

Even the toughest tires can have a problem. The Jinx, I mean Rola, knows that first hand too.

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Old 07-01-2011, 01:27 AM   #8
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I agree, Michellin appear to want ot help, I emailed the dealer and hope to get hear back to them tomorrow. I did take some pictures and sent them to both Michellin and the dealer.

I have included a couple here showing the issue.






To the touch the tire threading seems to have seperated at the bulge.

No big deal if I don't manage to get a replacement tire but not something I expect to happen so soon after purchase.

Simon

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Old 07-01-2011, 10:53 AM   #9
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That looks like what happened when I over inflated a tire

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Old 07-01-2011, 03:09 PM   #10
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A bulge is a weak spot and a tire shouldn't have any. To me that looks like a defect, but then again pictures always make this a bit tough to tell. An over inflated tire shouldn't really bulge inconsistently. You might play pop goes the inner tube, but it shouldn't bulge.

If it were a $10 tire you bought on sale, I wouldn't bother with it and just replace it and be done with it. A $50 + tire, Id at least ask.



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