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We changed from 17" RFT to 20" Non-RFT last week (F11) and the car handles significantly better. Sure it is not quite as comfy as before, but I think a really important step is to get rid of the RFTs. I assume that changing from 17" RFT to 19" Non-RFT will have no negative impact on comfort but the look is way better and the car handles also much better.
Regarding weight I noticed that the OEM rims with 17" RFT (winter tires) weights more then the 20" BBS CH-R with Michelin PSS. Also a reason for me to get rid of the 17" RFT and get Non-RFT as a replacement.
For bad road conditions, I would not go higher then 18", because of the tire hight, potholes would not be such a big issue then.
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Best regards, Jochen
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Last edited by itf joegun; 03-19-2012 at 03:00 AM..
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