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

Would I run into any problems running 245/40/18 on my 250AWD

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Old 02-02-15, 10:11 AM
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Phresh2010
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Default Would I run into any problems running 245/40/18 on my 250AWD

Saw like new set of snow tires for cheap on craiglist and was wondering if i could run this size on my AWD is250. My car is stock with the oem 18 inch is350 wheels. Would I experience any kind of rubbing?
Old 02-02-15, 10:50 AM
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WylieKylie
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That is a really big tire for the front of the car. 1.5" + bigger diameter, and almost an inch wider than the largest stock tire that comes on a 2IS. I would expect rubbing.
Old 02-03-15, 08:13 AM
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scott1256c
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My math says the diameter will be 2*0.4*(245-225)=16mm which is about 0.63" larger diameter. Also about 0.8" wider. I'm running 245/40/18 on the front of mine with a 18x8.5 with 40mm offset. I get no rubbing, but I would if I lowered it much. Mine is an IS350. I honestly don't know what is different in the suspension up front between the two. I suspect yours would fit the same as mine, but the differences may make that combination not work on a 250
Old 02-03-15, 11:37 AM
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WylieKylie
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^ scott is right, I must have forgotten to take my meds yesterday. I thought it was 225/50-18
Old 02-04-15, 10:47 AM
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NYKnick101
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If your not lowered it would fit fine with no rubbing. 245/40 might stick out a but but not enough to be noticeable unless you really look at it. I have Plus snow tires tend to be a little thicker so even thouhg 40 is a low profile, it would look thick. Right now im running a 225/45 and its fine for me
Old 02-04-15, 10:49 AM
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Nixcision
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I run 225/40/18 on 18x8.5 and I have tons of space on my awd --- I'm lowering lol.

But you'll definitely be fine.
Old 02-04-15, 01:11 PM
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Jeff Lange
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Originally Posted by Nixcision
I run 225/40/18 on 18x8.5 and I have tons of space on my awd --- I'm lowering lol.

But you'll definitely be fine.
245/40R18 is taller than 225/40R18

Rears will fit fine, fronts might be a bit close, but if you're not lowered, it will probably be fine too, the AWD is a bit higher than the RWD.

I am running 245/40R17 all around on my RWD (sport suspension) with no issue, but the 18's will be an inch taller diameter than I'm running.

Jeff
Old 02-04-15, 07:20 PM
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Nixcision
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Originally Posted by Jeff Lange
245/40R18 is taller than 225/40R18

Rears will fit fine, fronts might be a bit close, but if you're not lowered, it will probably be fine too, the AWD is a bit higher than the RWD.

I am running 245/40R17 all around on my RWD (sport suspension) with no issue, but the 18's will be an inch taller diameter than I'm running.

Jeff
I know! But i was saying that I have a TON of space, so I don't see why he would run into issues
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