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In researching the idea of putting 20" rims on my 2006 awd 300c I've come across several things that give me concern:
The offset for the awd is said to be 55mm, yet many people seem to recommend 42 - 45mm for a replacement rim? Confusing...!
People report that gas milage will suffer going from a 225 (stock on 18") to a 255 - this makes sense to me and I'm not that interested in making the milage worse - but how much worse is it?
General performance concerns - one thread talks about how the 300c is engineered for an 18" rim i.e. the brakes, unsprung weight etc. I'm unschooled about this so....chime in!
Potential rubbing as reported in this thread.
I like the look of 20" rims and also like the look of a wider tire, but I don't want to drop $2500 on a set of rims and rubber and later regret it because of the above mentioned issues.
What are your thoughts?
Thanks,
Kandor
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