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G240 · 03-07-2012, 01:26 PM

I guess this is a good place as any to ask a noob question.

I currently have 18x9.5 and 18x10.5 wheels running 245/35/18 on all four. It's pretty square on the 9.5 and mildly stretch on the 10.5

I'm considering running 225/35 on the fronts and keeping the 245/35 in the back.

I picked 35 series tires because i felt it gave me the closest to factory speedo ratio.

So why do most run 40 series tires?

03-07-2012, 01:26 PM	#778
G240 Zilvia Junkie Join Date: Jan 2008 Location: Houston Posts: 349 Trader Rating: (5)	I guess this is a good place as any to ask a noob question. I currently have 18x9.5 and 18x10.5 wheels running 245/35/18 on all four. It's pretty square on the 9.5 and mildly stretch on the 10.5 I'm considering running 225/35 on the fronts and keeping the 245/35 in the back. I picked 35 series tires because i felt it gave me the closest to factory speedo ratio. So why do most run 40 series tires?