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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > Tire wear weird pattern. Is this normal?



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      08-06-2012, 11:20 PM   #1
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Tire wear weird pattern. Is this normal?

So while measuring the tread left on my tires, and generally looking at them to see how they might hold up for about another 100 miles, this is what I noticed.


OEM Bridgestone "RE050A I" at ~19000 miles. I am trying to figure out what might be the reason of this kind of wear.

Is this normal? Perhaps a characteristic of the RE050A? These are about 20 months old. It is high time for replacement, I am going in this weekend. I check tire pressure at least once every month and keep it around 33-34 psi Fronts, 36-37 psi Rears.

These pics are from the front tires. The rears are in a better shape but they also show cracking/wrinkling on the insides just like the fronts. The fronts wore out quicker than the rears.
Is this something to do with Wheel Alignment or this is normal wear due to weather and mostly freeway driving?


This is what I noticed on the tread. Some cracking on the inside (More like shrinking/wrinkling)?





Also notice this, not sure what to call it. Is this feathering or something else, the technical term of which I am not aware of.




Sort of a full view of the tread, wear is not uneven at least






There is a well defined line which is visible, and there is more visible cracking/wrinkling, is this quite normal?




Any insights would be great. It is a little surprising to see all these things on the tires which I have been riding on for the last few weeks.
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      08-07-2012, 10:14 AM   #2
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Definitely look like it's time to get an alignment done!
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      08-07-2012, 03:33 PM   #3
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Quote:
Originally Posted by Sean@PYSpeed.com View Post
Definitely look like it's time to get an alignment done!
Thanks, Sean

Any idea why that cracking/wrinkling is happening?
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      08-09-2012, 02:57 PM   #4
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I would really appreciate some input. Thank you guys!
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      08-09-2012, 03:04 PM   #5
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Quote:
Originally Posted by bavarianboar View Post
Thanks, Sean

Any idea why that cracking/wrinkling is happening?
Aggressive Corning would be my guess. I get it all the time.
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      08-09-2012, 05:57 PM   #6
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The thing pointed by the red arrows is normal. The wavy pattern on the inner thread in 1st picture, assuming this is a front tire, I don't know what to think. Looks almost like dry roting, but not completely (??).
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      08-09-2012, 07:15 PM   #7
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They look fairly normal to me. They do look a bit wrinkly but doesn't look like an issue.
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      08-09-2012, 08:02 PM   #8
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Look like mine.
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      08-09-2012, 10:55 PM   #9
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@335iTitan : I do tend to take corners aggressively. My fronts have smaller tread left than the rears. On a side note, I just discovered, that the RE050A I, staggered setup comes with different tire tread dimension. 11/32 on rears and 9/32 on fronts.


Its comforting to hear this isn't abnormal. Perhaps quite similar to tires on some of your E9x.

Thank you everyone for your responses. Much appreciated!
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