Hi,

I am still looking for 18 inch wheel for my 06 525XI. Looks like I found one I like finally.

Would Style 135 from M3 work for my car? They are close to Xi wheel spec, but I am not sure.
Front: 18x8, ET47
Rear: 18x8.5, ET50
Also, I have a nice set of 245x40x18 and 265x35x18 tires. Would these tires work fine with these wheels?

Thank you in advance.
BMGG

 

With those offsets, even if the tires don't rub on the strut, the wheels will sit too deep inside the arches. This means you'll be needing spacers. Second issues I see here is the rear tire size - the overall rolling diameter of the rear wheels will be more than 1.5% smaller than front, which will make your speedometer show higher than actual speed and might in the long run affect your X-drive system, because it will continually think that the rear wheels are slipping, as they'll be turning more than the fronts.

 

Comparing staggered setup of style 124 for XI vs Style 135 from M3
Front: 18x8 ET43 Front: 18x8 ET 47
Rear: 18x9 ET55 Rear: 18x8.5 ET 50

they look close, will I need spacer for style 135 from M3?

Thank you
BMGG

 

It will work, but you will need some spacers.

Here's a tool to use for future reference:

http://www.1010tires.com/WheelOffsetCalculator.asp

OEM Specs can be found here:

http://www.realoem.com/bmw/select.do

 

Thank you, C's Bimmer.
Could you recommend spacers for front and rear? I plan to use 245x40x18 and 275x35x18 tires.

BMGG