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Winter tires: 235/40-18 vs 245/40-18 vs 255/40-18

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I am planning on getting new wheels in size 18x9.5 ET45 for my integra Type S for the winter.

vredenstein makes wintrac pro tires in the sizes in the title. I am not sure which one to get. Thinner (235) to maximize winter driving or thicker (255) to closer match the factory tire width?
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StingertimeNC

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At least 255. I wouldn’t want more stretch than that. The 265’s are already slightly stretched.
 

Frenzal

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Don't think it is possible to put 235 tires on a 9.5 wheel. Look at the tire spec sheet, they tell you which size wheel will fit each tire width.
 

Brooski1

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Tirerack does say that a 235/40R18 will fit an 8 to 9.5" rim.
 

akoza

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Tirerack does say that a 235/40R18 will fit an 8 to 9.5" rim.
Can confirm. My winter setup is 235/40R18 on 18x8.5 wheels with a +38 offset. I bought mine from Tirerack fully assembled (including TPMS sensors, hub centric rings, and lug nuts specific to the wheels).

That tire size will get you the closest diameter to stock so you don't have to worry about the speedometer/mileage counter being off.
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