Staggered set up on xdrive?

[DenBel]

Read a lot about staggered rims on xdrive vehicle. Some people state that it damages xdrive components, others say that it’s ok. I have staggered wheels on my x5 with no issues. But what about 650i xdrive? Please share your opinions and experience)

[Opie55]

Basically the same system. They key is diameter - same issue with replacing one tire. The overall diameter of the four wheels should be within a certain tolerance. I don't know what BMW's is, but the most I've seen is 4/32" (1/8") - at least on the same axle. Not sure about between axles - it's been too long since I read up on it. But the damage must be very slow to occur because I've never seen a post about actual damage - just theoretical damage.

[RJV3]

Staggered setups do not screw with with Xdrive provided your wheel diameter is not so drastic from original spec that rotational diameter tolerance does not exceed 1%. At least that was my understanding from BMW since there are BMW specs that offered stock staggered setups.

The below link can help. You determine rolling diameter and proper offsets. Plug in your current set up and desired setup to check compatibility.

https://tiresize.com/wheel-offset-calculator/

[arucano]

As long as the outside diameter (and circumference) are the same, the width does not matter. If there is a diametrical difference either on on the same axle on between front and back are different it WILL contribute to accelerated wear of the drive train components, particularly the clutches. The larger the difference the larger the wear increase. Obviously there is some tolerance since tire pressure differences also change the rolling diameter.
The exception would be the new 4wd systems that are designed to be able to run on rear wheel drive only (M-cars).

[Qsilver7]

Originally Posted by DenBel

Read a lot about staggered rims on xdrive vehicle. Some people state that it damages xdrive components, others say that it’s ok. I have staggered wheels on my x5 with no issues. But what about 650i xdrive? Please share your opinions and experience)

Just like your X5...the 6 series owners manual lists BMW's recommended staggered wheel/tire sizes in the owners manual. If the AWD 6 series weren't designed to handle staggered wheel/tires...then I doubt BMW would recommend them in the manual.

As mentioned already...it's about staying within spec of overall rolling circumference that is important.

245/40/19 (front)
275/35/19 (rear)

or

245/35/20 (front)
275/30/20 (rear)

[DenBel]

Originally Posted by Qsilver7

Just like your X5...the 6 series owners manual lists BMW's recommended staggered wheel/tire sizes in the owners manual. If the AWD 6 series weren't designed to handle staggered wheel/tires...then I doubt BMW would recommend them in the manual.

As mentioned already...it's about staying within spec of overall rolling circumference that is important.

245/40/19 (front)
275/35/19 (rear)

or

245/35/20 (front)
275/30/20 (rear)

Thanks for the info!

[DenBel]

Looking to get the rims from m6, hope they fit

[arucano]

Originally Posted by DenBel

Thanks for the info!

If you look at tire rack, in the spec section, they have the tire revolution per mile. the 275/30/20 are 784 per mile and the 245/35/20 are 777 revs per mile which is just about 1% difference. That gives a good guideline if you want to choose other sizes.

[Opie55]

I don't think the M6 wheels will fit. This has been discussed a number of times so you can search, but either front or back - I forget which - the offset is way off and the wheels will stick out.

[Luftpost]

To take it yet one step further, the tire manufacturer also lists the diameter of each tire that they produce. You will need to go to their website and dig a little, but it's there. With these figures you can calculate and find a combination that works within the 1%. I just recently did this with Michelin.

BTW, I am running style 373, 20" in 245/35 and 285/30, which is also an option listed with Tire Rack.

L

[DenBel]

Originally Posted by Opie55

I don't think the M6 wheels will fit. This has been discussed a number of times so you can search, but either front or back - I forget which - the offset is way off and the wheels will stick out.

Will search, thanks, most likely the fronts can be the issue as m6 fenders looks wider
EDIT: the rears are the issue because of the offset.

[sananvet]

During an emergency i was forced to put a staggered setup outside of stated tolerances and blew up my front drive. Was a 12k repair. long story. ill never attempt it again. a flatbed tow truck and a night in a hotel is cheaper

[Greekstyle]

Closest I got is 235/35 front and 275/30 rear.

235/35/20 gives a 26.476 diameter and 83.177 circumference.

275/30/20 gives a 26.496 diameter and 83.239 circumference.

Difference is very minor. Definitely less than 1%. 99.92% similar.

[TON-III]

Reality of different tires and diameters can be something else what those size tables are showing. Front and back different camber angles has own affect.