01-12-2019, 06:53 AM | #23 | |
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01-12-2019, 09:18 AM | #24 | |
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If the tire has the word "OUTSIDE" on it, and is staggered, how would one rotate it without dismounting the tires? Arent stock tires for all M40s staggered? If back tires both say OUTSIDE on them, and one simply has them taken off and sides swapped while still on the rims, then the word OUTSIDE would actually be on the inside (unless the tire was removed from the rim and swapped around so the word outside was back on the outside). Are you saying that you have them dismount the tire from the rim, rotate it, then swap the rims to the other side as was said by someone else... or do you actually just have them rotate as we normally mean the word on the same axle, and if so, how is the word OUTSIDE still remaining on the outside without doing the above? Like I said, I am confused so likely missing something.... |
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01-12-2019, 09:29 AM | #25 | ||
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01-12-2019, 09:38 AM | #26 | ||
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That's my impression of a tire rotation in a staggered set. |
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01-12-2019, 09:50 AM | #27 | |
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Not sure why I was having so much issue picturing it, but yeah it obviously would still say "outside" on the outside when rotated that way. Thanks for not blasting me on it lmao. |
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01-12-2019, 09:58 AM | #28 | ||
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Even though you said it's your wife's M40i, I have a feeling that you will like the car so much you end up spending more time behind the wheel than your wife does... Enjoy the ride! |
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01-12-2019, 10:16 AM | #29 | |
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Anyway, back to the thread topic. Nice to know the tires are not directional. I never bothered rotating them / having them rotated in previous BMWs but maybe I should at least have them rotated per axle this time. |
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01-12-2019, 10:36 AM | #30 |
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I don't see much value in doing the type of rotation mentioned above (i.e. putting front left wheel onto front right). This mirrored flip does not provide much rotation. The M40i most likely has aggressive negative camber, which means the inside of the tire will wear faster than rest of tire. If you simply flip it to the other side, the same part of the tire is still on the inside and wearing at the same rate. It is simply rotating in the opposite direction. Probably better than nothing but most likely won't increase tire life...
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01-12-2019, 02:09 PM | #31 | |
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and I believe that BMW discourages rotation because of that rear aggressive camber, citing safety and handing issues with different wear patterns. |
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01-12-2019, 09:10 PM | #32 |
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01-12-2019, 09:26 PM | #33 |
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I always was told not to rotate radials on the same axel. Maybe that was bad advice.
Our X3 was supposed to be my wifes car. I sort of took over her Mini, turbo, convertible with a 6 speed. Now, I have decided I like the X3 and gave her back the Mini. 😎 |
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01-12-2019, 09:55 PM | #34 |
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Agree that if you can't rotate front to back (due to differing sizes) it's not worth rotating at all. Even if the tires are not directional, rotating on the same axle doesn't change which tires are getting the primary abuse.
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01-12-2019, 10:22 PM | #35 |
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All that, and then considering most of our cars are AWD with near 50/50 weight distribution.....save your money and don't worry about rotating tires.
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01-13-2019, 12:00 AM | #36 | |
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01-13-2019, 03:08 AM | #37 | |
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01-13-2019, 04:53 AM | #38 |
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I'm in the camp of doing tire rotation if we can do it for free or minimal charges. I agree the value might not be much if the alignment is perfect, but I know from real life experience that hitting a pothole on one side but not the other will cause unevenness between the sides, even if this is small. Unless we check the alignment every week, I don't see how I can assure equal and regular tire wear between the two sides. Hence, the idea of erring on the side of abundance caution. Besides, there is no downside of doing the tire swap as far as I can see...
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