Originally Posted by tturedraider
It is a ratio of the width. 40% of 225 mm v 45% of 225 mm. Are you just having the tires
swapped on the original wheels? Better for winter tires
would be something like a 215 on a 17" wheel or even a 215 on the 18" wheel. Narrower gets through the snow better.
17" snows are cheaper as well.
the cost of mounting and balancing twice a year (if you plan on just swapping tires) pays for new 17" rims in about 2.5 years
Past: 2001 330i ZSP/ZPP/Step
Past: 2004 S60R 6MT Sport
Past: 2007 335i 6MT ZSP/ZCW/322/655
Past: 2010 335xi ZMP/ZCW/ZPP/PPK/PE
Present: 2013 335i 6MT ZMM/ZDH/ZTP/3AG/494/508
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