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      02-29-2012, 01:56 PM   #1
sig5x
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Drives: e92 ZCP
Join Date: Dec 2009
Location: USA

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Grip increase from running wider (255/275) tires? How much?

I was wondering if anyone had input on how much of an increase (in "g) in grip from switching to slightly wider tires?

It's common to upsize from a 245 fr / 265 rr width to 255/275 or even 255/285.

Assuming the same car, suspension and tire model, how much of a quantifiable gain could this result in?

Aside from the increased rolling resistance and added tire weight, are there any other drawbacks?

Thanks.
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2011 e92 M3: AW/blk zcp, dct
2008 Civic Si FG2 ASM/blk
2005 e46 M3: SG/blk zcp, 6MT (sold)