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[speeedfire]

Hi guys,
what is the recommended tyre size for E92 35i xdrive?

I read somewhere the xdrive didnt like big tyre size...
The factory recommended is:
front 225/40R18 rear 255/35R18
front 225/35R19 rear 255/30R19
//i think the 255/30 is too slim, and dont comfortable

But is size is not enough for me. The car is 400+ hp now, and i want more in the future.
Mb 265/35R18 or 255/35R18/ for all wheel? Or 255/35R18 front and 265/35R18 rear?

[whyzee125]

What width of wheels do you have? Staggered or same width all around?

[335i54n]

245/40/18 with rear 275/35/18 or 255/35/18 square imo.

[speeedfire]

Originally Posted by whyzee125

What width of wheels do you have? Staggered or same width all around?

I use now same wheel size (8.5j), but i want change it in the future.

[speeedfire]

Originally Posted by 335i54n

245/40/18 with rear 275/35/18 or 255/35/18 square imo.

The 245/40/18 and 275/35/18 its too big different it think. 2% and 2.5%.
Or nut? The xdrive not damaged with this size?

[whyzee125]

Originally Posted by speeedfire

The 245/40/18 and 275/35/18 its too big different it think. 2% and 2.5%.
Or nut? The xdrive not damaged with this size?

The issue here is that a 275 is too wide for an 8.5 wheel. There are calculators you can use to determine the difference in rolling diameter. I'd go 255/35r18 all around and that would work well on a 9" wheel too if you upgrade in the future. You could also ditch 2 of them and keep 2 if you step up to something really wide in the back.

[speeedfire]

Originally Posted by whyzee125

The issue here is that a 275 is too wide for an 8.5 wheel. There are calculators you can use to determine the difference in rolling diameter. I'd go 255/35r18 all around and that would work well on a 9" wheel too if you upgrade in the future. You could also ditch 2 of them and keep 2 if you step up to something really wide in the back.

I know, the 8.5 is not enough for the 275. But i write, i can change the wheel if it necessary.

So u think 255 for all is good?

[whyzee125]

Originally Posted by speeedfire

I know, the 8.5 is not enough for the 275. But i write, i can change the wheel if it necessary.

So u think 255 for all is good?

Yes, 255 for all is good.

[speeedfire]

Originally Posted by whyzee125

Yes, 255 for all is good.

Thanks