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					Originally Posted by BAN SUVS
					
				 
				There's a few guys in the Motorsports forum on nasioc who've been running 275s all year. I wonder what the physical gain is from 275 17s to 285 18s. Would be taller and heavier I would think. 
			
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 Actually, a 285/30-18 is smaller in circumfrence then a 225/45-17 
That is part of the reason why they chose that size as 275s are typically taller.
I'll dig for more info.