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Discussion Starter · #1 ·
I have an EX Niro 2017 bought in Feb 2017 (now jsut over 50,000 miles. I have been negligent on rotating tires (only once at 36,000 miles - see story and pictures)
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Issue I had and sort of neglected is left rear wheel was cupping on inside and had road noise (roar) for many miles.

My neglect was not rotating tires until 36,000 miles and not having an alignment when under warranty.

By the time I did rotate, the front tire (pulling tires, etc.) did have more wear (tread depth). Putting it on the back resulted in the inside going slick (another 14,000 miles), but had No Cupping.

And putting the cupped rear time on the front for 14,000 miles actually smoothed out the cupping, and since it had more tread depth to start with it still has some tread on the inside. .

I am thinking I have a camber problem on left rear wheel, but now think it might be toe in. I did some alignment research and found out the rear tire adjustment is limited to Toe In /Out, Camber is factory set to Negative 1.2 +/-0.5 degrees and is not adjustable (guess need parts to fix). Kia Niro : Alignment Repair procedures : Tires/Wheels

So, called around and found Alignment ($89,95 to $99.95 plus tax with no parts). Parts on rear for Camber would be $50 but $160 to install. Would be total of $300 + with tax.

NOTE: One Service Tech said, doubt Camber causing my wear, probably is Toe In. He explained he has a drift show car that has camber at 25 degrees and runs it on the HWY to shows with no notable wear.

I add my VW Sand Rail Buggy (street use) has a lot of camber and no significant wear.

And, come to think of it -- My NIRO tends to pull to the right a little (so maybe rear is toe in?)
 

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Discussion Starter · #5 ·
I appreciate the replies and agree probably not camber (BTW, think I mentioned before - factory is NEG 1.2 +/- 0.5). I thought was camber to start as visibly it is slightly more NEG than the right wheel. However, have learned from various sources, camber probably not cause that much wear if anything it is probably Toe (has to be something as two tires wore more on that inside tread area).

BTW: paid more attention to Pull when driving to the gym WED -- there is little or none (I did think I have felt some pull in the past to the right, but very little).

As far as jumping into do an alignment, not now as have 50,000 on these tires and good for some more (maybe 5000 more) I do hear of high mileage usage on these Michelin original Tires, like seems as much as 60,000 plus. I probably (maybe) would shell out the $89 or $99 for an alignment when buy new tires. Not gonna pay for $50 parts and $160 labor to correct camber even if recommended. Partly not spend that be cause get the impression camber does not cause that much wear (at least the amount I have). Also, I probably will not put another 50,000 on this car as I hardly ever keep a car that long. Plus, I'm 83 yrs old, so we know what age brings (get to where can't drive or die) and we average only around 10000 per year. I will rotate more often, DANG IT - should have before.
 
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