I have as set of 18's ready for snow tires.
My question is there are 2 sizes one can go with.

235/60/18 or 255/55/18.

Or mix the 2 sizes
front 235/60/18 rear 255/55/18.

Yes the narrow would be the best for snow.

What have you all done?


Thanks

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2005 X5 4.4
Sold but not forgoten