What happened to this tire?

335e92tx · 12-11-2008, 01:15 PM

Made full use of the 'run flat' this morning (at the worst possible time).
I initially thought it was bc my recent road course activities but this was on the INSIDE shoulder has a depression in a specific area around the circumference and needless to say, thats where it vented to the atmosphere...

I have not checked the other front tire.. but Im perplexed (not to mention poorer) what caused it to wear in this manner.

Joonsup · 12-11-2008, 01:24 PM

how wide is it?

noro · 12-11-2008, 01:34 PM

It appears to be a manufacturing defect. I can't think of anything that would leave such a nice and smooth kink in only one spot. If the kink was throughout the whole tire you could blame it on rubbing.

335e92tx · 12-11-2008, 01:38 PM

Quote:

Originally Posted by joonsup

how wide is it?

The inner yellow square box corresponds to the depressed area..

Joonsup · 12-11-2008, 01:44 PM

sorry i meant how wide is that tire. I was thinking maybe during a sharp turn it rubbed against something

335e92tx · 12-11-2008, 01:47 PM

Quote:

Originally Posted by joonsup

sorry i meant how wide is that tire. I was thinking maybe during a sharp turn it rubbed against something

Factory OEM 225 runflat fronts

anerbe · 12-11-2008, 03:24 PM

could possibly be a 2nd belt issue (typically this is the area where the second belt (outer) ends. that could be a manufacturer's issue.

do any higher speed runs and/or keep inflation a bit low?
typically if you do, tires may prematurely fail at the corner of the shoulder, where the thickness of the tire is greatest - this area cannot dissipate heat well, and could be a design issue when running in your conditions ( texas)

335e92tx · 12-11-2008, 03:33 PM

I guess its possible that the tires were on the low side during my road course runs and that area was subjected to some force.. but I still would think it would be further around than just so localized. But the real big turn that was like a 180degree right hander at 80-100+ should have loaded the outside of that tire.

12-11-2008, 01:15 PM	#1
335e92tx ahat 1036 Rep 2,592 Posts Drives: Was '07-335e92 - Now '13-335IS Join Date: Mar 2008 Location: Texas iTrader: (6)	What happened to this tire? - inside shoulder depressed Made full use of the 'run flat' this morning (at the worst possible time). I initially thought it was bc my recent road course activities but this was on the INSIDE shoulder has a depression in a specific area around the circumference and needless to say, thats where it vented to the atmosphere... I have not checked the other front tire.. but Im perplexed (not to mention poorer) what caused it to wear in this manner. Attached Images __________________ '13 335IS N54 (1 of 373 LeMans Blue out of 3597 total production e92)- Grey interior (1 of 24 in LMB with any trans- 1 of 14 with DCT)-MODS -MFactory LSD/MHD-BQ custom Tune/ATM-IC/AFE Momentum GT Intake/Konis/Mfront&HeimJoint Rear rods&arms/Brembos. https://photos.app.goo.gl/Lo6aHZRo7XqtPkhL8
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12-11-2008, 01:24 PM	#2
Joonsup Lieutenant General 322 Rep 17,316 Posts Drives: E92 M3, E30 325i Join Date: Sep 2007 Location: Bay Area iTrader: (8) Garage List 2008 BMW M3 [9.50]	how wide is it?
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12-11-2008, 01:34 PM	#3
noro Colonel 90 Rep 2,707 Posts Drives: '91 M3, '04 E46 ZHP, '72 2002 Join Date: Aug 2006 Location: Boston iTrader: (0)	It appears to be a manufacturing defect. I can't think of anything that would leave such a nice and smooth kink in only one spot. If the kink was throughout the whole tire you could blame it on rubbing. __________________ zhpregistry.net - ZHP stats and free classifieds.
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12-11-2008, 01:44 PM	#5
Joonsup Lieutenant General 322 Rep 17,316 Posts Drives: E92 M3, E30 325i Join Date: Sep 2007 Location: Bay Area iTrader: (8) Garage List 2008 BMW M3 [9.50]	sorry i meant how wide is that tire. I was thinking maybe during a sharp turn it rubbed against something
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12-11-2008, 03:24 PM	#7
anerbe Lieutenant Colonel 121 Rep 1,568 Posts Drives: Red E90M 6MT Join Date: Dec 2006 Location: BH, MI iTrader: (2)	could possibly be a 2nd belt issue (typically this is the area where the second belt (outer) ends. that could be a manufacturer's issue. do any higher speed runs and/or keep inflation a bit low? typically if you do, tires may prematurely fail at the corner of the shoulder, where the thickness of the tire is greatest - this area cannot dissipate heat well, and could be a design issue when running in your conditions ( texas)
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12-11-2008, 03:33 PM	#8
335e92tx ahat 1036 Rep 2,592 Posts Drives: Was '07-335e92 - Now '13-335IS Join Date: Mar 2008 Location: Texas iTrader: (6)	I guess its possible that the tires were on the low side during my road course runs and that area was subjected to some force.. but I still would think it would be further around than just so localized. But the real big turn that was like a 180degree right hander at 80-100+ should have loaded the outside of that tire. __________________ '13 335IS N54 (1 of 373 LeMans Blue out of 3597 total production e92)- Grey interior (1 of 24 in LMB with any trans- 1 of 14 with DCT)-MODS -MFactory LSD/MHD-BQ custom Tune/ATM-IC/AFE Momentum GT Intake/Konis/Mfront&HeimJoint Rear rods&arms/Brembos. https://photos.app.goo.gl/Lo6aHZRo7XqtPkhL8
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