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Old 10-27-2010, 06:37 PM   #125
the misanthropist
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Join Date: May 2002
Location: a house
Posts: 6,248
The bigger the rim, the smaller the tire sidewall. This is desirable for handling with street tires but higher end R comps have such stiff sidewalls that this isn't a factor. So other than brake clearance, it's just for looks. I've heard people say it's for weight savings but that's asinine, rubber weighs less than aluminum.
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