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Car is a 2008 Mitsubishi Lancer FWD, I try to get it aligned every few months or so and I don't get any hard pulls in either direction if I let the steering go. Also tend to drive on fairly rough roads, think gravelly asphalt.

I noticed this sometime back and it has gotten worse over time. It's more towards the outer edges but there is a little damage to the middle as well. I plan to replace these tires very soon but I want to know if there's a specific issue or habit causing it.

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  • How old are the tires? Are you cornering hard? Brand? – Daniel May 24 '18 at 11:54
  • Are the pressures correct? Then tends to be going into corners hard... – Solar Mike May 24 '18 at 12:01
  • Tires are a little over 2 years old, sometimes but not often with the hard cornering and KUMHO. I actually just remembered that the pressure might have been dropped from 30ish to ~26 by my mechanic because it was being very sensitive to aforementioned roads and I was getting some vibrations on my dash. – iKlsR May 24 '18 at 12:18
  • Are all four tires worn the same? What sort of issues are you having that cause you to "get it aligned every few months or so"? Unless this is a race car I don't understand that need. I have seen tires worn like this before that were the result severe understeer (plowing). I would recommend following the manufacturers recommendation on tire pressure. Under inflation can cause a number of issues including loss of traction, poor steering response and overheating the tire which can lead to failure. – Tim Nevins May 24 '18 at 13:45
  • @iKlsR: 2 years by production date or did you buy them 2 years ago? – Daniel May 24 '18 at 13:47
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The model of vehicle you drive and the appearance of the tires and wheels would lead one to believe that these are performance tires, rather than mundane rubber donuts for an automobile.

If you check the specific model of tire that you are using, you can determine what level of performance standards would be applied to the rubber.

"Sticky" tires will give great performance in acceleration and cornering and will also have very low wear durability. The damage to the tread is consistent with your description of rough roads especially if that is combined with softer rubber compounds.

From the Tire Rack web site:

UTQG numbers are assigned to indicate a tires overall level of performance and tread hardness. These numbers beginning at 0 for race products and traveling north of 800 for some of the longest lasting all-season tires, are nothing more than a general guideline to assist customers in making their correct tire purchase.

A more comprehensive discussion can be found within the above linked location or directly at this link.

  • Exactly what i was thinking about, but then in a better prepared answer. Upvoted. – MadMarky May 24 '18 at 14:56
  • Thanks, never thought of this really. I will poke around and report back! – iKlsR May 25 '18 at 0:59

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