IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

biggest tire size on stock 18" Wheel

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Old 03-21-13, 06:59 PM
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leadfoot83
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Default biggest tire size on stock 18" Wheel

Im thinking about going to oa 275/40/18 in the rear since i will need to replace the backs soon and wanted to know if anyone else has run this size on the stock rim?
Old 03-21-13, 07:15 PM
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jbjones85
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i'm running a 265/40 on my stockers (rear) with no issues. a 275 might fit but I think that it is a little to wide for the stock size wheel.
Old 03-21-13, 07:22 PM
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leadfoot83
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Originally Posted by jbjones85
i'm running a 265/40 on my stockers (rear) with no issues. a 275 might fit but I think that it is a little to wide for the stock size wheel.
yea ive got a 264/40 on the back now as well with no problems.
Old 03-22-13, 08:17 AM
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embolism
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so does putting a tire wider than 255/40/R18 on the rear stock 18 do anything performance wise or is it just for looks?

I'd imagine the contact patch might be a bit bigger so you'd get more traction but use more gas and pay more for the wider tire.
Old 03-22-13, 08:22 PM
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JDMis350
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Have any Pictures?
Old 03-22-13, 10:29 PM
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IonSpray35
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As well as putting the speedometer off.
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