Winter tire size - Lexus IS Forum
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post #1 of 7 (permalink) Old 09-02-2014, 07:59 AM Thread Starter
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Winter tire size

Hello.

My 2011 car comes with staggered 18" wheels.
I want to put on winter tires with just some steel rims.

What size is recommended?

Thanks in advance!
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post #2 of 7 (permalink) Old 11-11-2014, 06:19 PM
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Go with the same size the manufacturer recommends. There is no real reason to change.

If you want to run steelies, you can go down to a 17", should clear your brakes just fine.

225/50/17 should fit no problem.

M

2008 Matador Red ISF - stock for now.
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post #3 of 7 (permalink) Old 08-27-2015, 07:10 PM
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If you are in the muck, going narrower is your friend. Stability is your goal. The narrower you are, in snow, the better you can cut grooves. I'm planning on going to 205's this season.
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post #4 of 7 (permalink) Old 08-27-2015, 07:16 PM
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Yeah, he probably figured it out by now but tall side walls and skinny tread walls yield the best performance in snow.
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post #5 of 7 (permalink) Old 11-14-2015, 06:32 PM
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Dealer says no - for '15 IS350 AWD

Dealer says I have to stay with the F-225/18-40, R-255/18-35 setup or the ABS sensor will go off.

I too would like to run 225/17-45 for winters.

Is the dealer blowing smoke?
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post #6 of 7 (permalink) Old 11-14-2015, 08:13 PM
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You simply have to match the stock tire diameter. You can run a smaller wheel with a taller tire. In other words, revolutions per mile should stay the same as stock. Maybe someone can chime in with specs.

On another note, I don't know how sensitive your particular ABS setup is but it's my understanding that ABS simply wants to see all wheels spinning at the same speed. I can see an ABS light if your rears are taller than the front but not if all wheels are the same. Sounds like they're blowing smoke but I have no idea how sophisticated things are nowadays

With that said, as long as the revolutions are the same as stock, you can definitely install a proper winter setup.

"There's nothing like waiting and getting exactly what you want."
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post #7 of 7 (permalink) Old 11-16-2015, 04:11 PM
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Thank you Blkdout.

This is what others have said.
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  Lexus IS Forum > 2nd-Gen IS250/IS350 > Wheels and Tires

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