Tyre Sidewall Bulges?

Submitted: Friday, Feb 27, 2009 at 23:58
ThreadID: 66361 Views:2699 Replies:7 FollowUps:0
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Hi
I was looking at my mates 6 month old Wrangler tyres today.

We noticed that all 5 tyres had 3 or 4 bulges or bumps around each sidewall.
We then inspected my brand new Bridgestone 694 LT, a couple of these tyres had 1 or 2 of the same bumps/bulge.

I always thought sidewall tyres where smooth without any bumps unless a potential fault.

How do you find your tyres when you run your palm around the sidewalls?
Any comments would be appreciated.

Regards
Norm
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Reply By: Skippype - Saturday, Feb 28, 2009 at 00:08

Saturday, Feb 28, 2009 at 00:08
Hi Normglenda
I have noticed the same thing on my Cooper ST/C tyres. I first noticed the bulges after they had only done about 7,000km. They have now done 40,000km over the roughest country this country has to offer and they have not changed. I just keep an eye on it and don't really worry.
Skip
AnswerID: 351443

Reply By: Member - Phil G (SA) - Saturday, Feb 28, 2009 at 08:29

Saturday, Feb 28, 2009 at 08:29
The minor bumps are normal. The big ones are not and can represent a broken cord or delamination.
Get them inspected by a Goodyear dealer. If they are abnormal, theres a very good chance they will replace free of charge, unless your mate has been obviously trashing them.
AnswerID: 351454

Reply By: Member - Paul W- Esq (VIC) - Saturday, Feb 28, 2009 at 09:07

Saturday, Feb 28, 2009 at 09:07
I run 2 sets, they both have these 'characteristic' lumps in them. when they were new they didnt but as they age they develop these, my KL78 Kumhos have done 15k and the Procomp muddies 54k of some hard work and they have not gotten any worse. so dont stress unless they get bigger then as Phil stated get them checked.
AnswerID: 351459

Reply By: Madfisher - Saturday, Feb 28, 2009 at 10:00

Saturday, Feb 28, 2009 at 10:00
The crap hancooks had them. Had a set of Goodyears wranglers years ago and they where shockers, and could not balance them. Only plus was I could not wear them out.
Cheers Pete
AnswerID: 351467

Reply By: Member - Bucky, the "Mexican"- Saturday, Feb 28, 2009 at 12:04

Saturday, Feb 28, 2009 at 12:04
nornglenda

Check out this post !

ThreadID: 59531

worth a read....

Cheers
Bucky
AnswerID: 351480

Reply By: Member - Marco T (VIC) - Saturday, Feb 28, 2009 at 12:32

Saturday, Feb 28, 2009 at 12:32
Normglenda,

I have cooper ST's and have the same thing. Minor bumps on side wall from new. I had some concern but have done 25,000 now and 6,000 of that on corrugated dirt roads and have not changed.

Might be normal?

Marco
AnswerID: 351486

Reply By: normglenda - Sunday, Mar 01, 2009 at 12:22

Sunday, Mar 01, 2009 at 12:22
Thanks all for the info. and advise.
AnswerID: 351641

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