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Old 11-20-2010, 03:52 PM   #6 (permalink)
wilsonp
A True Z Fanatic
 
Join Date: Jul 2010
Location: Virginia
Posts: 1,134
Drives: 2009 Touring Sp Nav
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TireRack says the 255 tire is a pound lighter than the 245/40 - I guess extra sidewall weighs more than extra tread.
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