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      06-10-2012, 02:42 PM   #26
antennahead
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Drives: 2007 Z4MR silver grey
Join Date: Feb 2011
Location: Charleston, South Carolina

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Do you guys running 235/40 & 265/35 notice a difference in ability to handle/absorb rough roads, versus stock aspect ratio/sidewall height? The overall diameter is a half inch smaller on the front and .7" smaller in the rear compared to stock, making the sidewall about a 1/4" lower in the front and a 1/3" less in the rear................. too small a difference to notice? The roads here on the coast are not so good. They re-pave and the earth settles and the bumps and dips return. As far as the front goes, I guess the shorter sidewall aids steering response. Conti DW comes in a 235/45 & 265/40 size, increasing the sidewall about a 1/3" compared to OEM sizes. I want to go with the PSS though when I replace my originals, so it's either 225/45 & 265/40 (assuming just one size larger in the rear will have minimal affect on understeer), or 235/40 & 265/35.

John
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