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      05-07-2021, 07:31 AM   #5
FBMWWINS
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Drives: M8C Coupé & M240i Coupé
Join Date: Nov 2011
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Quote:
Originally Posted by Bowhunter1331 View Post
I can't any get that site to work

I spoke to a guy today about Ferrada rims

He told me I could go 20x9 ft / 20x11.5 rear
All I know is the diameter has to be same front to back or the x drive will get messed up
Here is another decent option try it:

https://www.willtheyfit.com/

Indeed with XDrive one needs to be more careful than with non-Xdrive cars when installing rims/tires out of original specs! I think 11.5J rear will be too much for the wheelwell but if you use one of those sites for calculating the variance you can get a reliable comparison and result/s as to how the change will affect the decisive aspects. 9J front would be no problem, as most certainly 10/10.5 rear when respecting the offset or not getting too far off from it. But 11.5J.... I'd question it seriously as rim will be 32 mm closer to suspension components and that is assuming your offset will stay the same!
Appreciate 2