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7 Series - F01 / F02 (2009 - 2015)
The 5th generation F01/F02 BMW 7 Series flagship forum. The redesigned 7 series leads off the BMW Fxx chassis code, offering an 8 speed automatic transmission and all turbocharged engine options.

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  #1  
Old 07-19-2016, 08:19 AM
jhartmac1 jhartmac1 is offline
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Staggered wheels and rear tire wear

Ok I know but hey IM new to this, but I was told by a BMW indy that I can expect inner wear on the rear tires and its not related to alignment but its just the expectation of the staggered issue. Now my next question whats my options? Maybe use the same size on both front and back? My rear is 275 40 19 not sure if that would fit on the front or Id have to use the front size on the back??
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  #2  
Old 07-19-2016, 09:20 AM
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JayR04 JayR04 is offline
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I don't think it has to do with the tires sizes. It's more related to the aggressive camber that most high performance vehicles have. I don't think you really have any options.
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Old 07-19-2016, 11:47 AM
jhartmac1 jhartmac1 is offline
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Its hard to believe that owners would be ok with replacement of tires that often, you would think they could be shimmed without sacrificing any loss of traction or performance.
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Old 08-19-2016, 03:43 PM
Cnotethedj Cnotethedj is offline
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I just replaced two tires last week. No choice but to rotate rear tires to extend the life a few thousand miles. The price you pay for the look I guess!
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  #5  
Old 08-20-2016, 10:14 PM
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BMW are notorious for negative camber on the rear tires. The fatter the rear, the more wear on the inside. I believe it is -2. If you do not drive aggressively, you can get 20K miles out of your rear performance tires. Let's not disillusion ourselves that these size tires will get us 50K miles.
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Old 08-22-2016, 07:45 AM
knipper knipper is offline
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These soft compound tires are very sensitive to wear due to pressure changes. Yes the BMW rears are set up with negative camber for performance, but you can also get very abnormal wear on the middle and outsides of the tires if you don't check your pressures regularly.

We have put about 400,000 miles total on a 540, M3, and two 750s. 20K on the rears is pretty normal.

Per Cnotethedj: "No choice but to rotate rear tires to extend the life a few thousand miles. The price you pay for the look I guess"

This is a fairly dangerous idea. The tires are directional, so if you rotate them, you are actually running them backwards and channeling all of the water directly to the center of the tire. Instant hydroplane.
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Old 08-22-2016, 08:26 PM
Cnotethedj Cnotethedj is offline
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My apologies for the confusion. I guess I used the wrong word, but when I said rotate, what I meant was the tires should be removed from the rims and switched to the opposite side in order to get wear on the inside and outside of the tire. No tire shop that I know of will install directional tires going in the reverse direction.
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Old 08-23-2016, 04:39 AM
knipper knipper is offline
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ah, ok got it. I wasn't considering that you might take them off the rims.

I actually did have a tire shop put directional on backwards once on my 1988 Acura Legend, but that was a very long time ago before directional tires were common.
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  #9  
Old 08-23-2016, 10:42 AM
kathyEs kathyEs is offline
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I'm buying a certified 740i, since there is a chance of problem with tires, should I buy the tire insurance. It's 3k for 5yrs!
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  #10  
Old 08-23-2016, 06:03 PM
Cnotethedj Cnotethedj is offline
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I wouldn't buy the warranty, because I don't think they will replace tires for bad tread wear. My 750 isn't driven everyday so my tires will probably last a little longer than the everyday driver, so I'm ok with inside wear. You just have to decide for yourself if it's worth it to you to pay the $$$.
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  #11  
Old 08-23-2016, 06:40 PM
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AntDX316 AntDX316 is offline
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Quote:
Originally Posted by Bimmer32 View Post
BMW are notorious for negative camber on the rear tires. The fatter the rear, the more wear on the inside. I believe it is -2. If you do not drive aggressively, you can get 20K miles out of your rear performance tires. Let's not disillusion ourselves that these size tires will get us 50K miles.
After a camber adjustment to near 0 then the delusional would be a realistic expectation.
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Old 08-24-2016, 07:36 AM
knipper knipper is offline
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After our 540 ran out of warranty, I did have the independent tire shop set the rears to more neutral bias. However, if your car is leased or still under warranty, then I think you may open yourself up to other potential issues with the dealer on getting warranty claims taken care of because your car is not set up to BMW spec.

Per the extended warranty question, I would add that where you live plays a huge role in the decision. The northeast has potholes that will swallow a tire, so while 10 years in NJ we bought the warranty. Now after 8 years in FL, we have not had a single tire issue as the roads are in excellent shape. We skipped the warranty.
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  #13  
Old 08-24-2016, 11:24 AM
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Quote:
Originally Posted by knipper View Post
After our 540 ran out of warranty, I did have the independent tire shop set the rears to more neutral bias.
I wouldn't expect to see this, but did that cause any change in wear pattern on your front tires? I'm considering doing this for ours as we just tore through a set of tires in under 15k miles (had cord showing on inner rear).
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