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

Tire option

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Old 05-16-17, 08:35 AM
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6speedLex
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Default Tire option

I purchased f sport wheels for my is250 2007. The front 18x8, can i run a 245/45/18 with out any issues? Im stock height and my car is a RWD model.
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Old 05-16-17, 08:40 AM
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SeanO
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It would fit.

May I ask why? That's a very tall front tire - 245 on an 8" rim its gonna look bloated
Old 05-16-17, 03:53 PM
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redspencer
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I would recommend using a 245/35/18 tire in order to be closer to the stock tire diameter. You'll have no rubbing issues with this setup.
Old 05-16-17, 06:08 PM
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6speedLex
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im sorry i meant 245/40/18. Still too big?
Old 05-16-17, 08:05 PM
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primavera
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Use this calculator. Click on Tire Comparison

https://tiresize.com/calculator/
Old 05-16-17, 08:54 PM
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Zmon
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Originally Posted by 6speedLex
im sorry i meant 245/40/18. Still too big?
Any reason you want a square setup? Stock sizes, even with those f-sport rims, are 225/40r18 and 255/40r18.

I believe 245's will rub a bit in the front when you have the wheel turned all the way to the left or to the right.
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