Quote:
Originally Posted by stevensonleehk
Dear All,
I'm new to the E90 community and this forum and was just wondering whether any of you have any comments on the ride quality and fuel consumption of 16" vs. 17" rims on our cars ...
I have a E90 323i (which I presume is not available in the US) and it comes with a standard 16" rim which are ... hmmm ...revolting in terms of looks to put it lightly  ... I was thinking of upgrading to 17" rims ... either style 158 or 159's ... but am worried about the potential deterioration in ride quality and fuel consumption ... needless to say, I intend to continue using RFTs ...
Would love to have some of your comments.
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I dont think you will notice to much difference in ride quality between the 16 and 17's. It really depends on the tire and also if you have Run flats now. A 17" non runflat will probably ride the same as a 16" run flat.
As for fuel economy unless you are going wider, or to a really sticky tire there wont be any change. (oh unless the rim and tire total weight is alot more one the 16 vs the 17)