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Discussion Starter #1
I just purchased a 2018 sonata limited 2.0t and I'm wanting to go with a wider and possibly taller tire. I don't plan on lowering the car I'm just not wanting to rub, so curious what everyone has tried will be on stock wheels.

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Taller tires are usually limited by the spring perch on the struts. See how much room you have now.
 

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Don’t know how wide the 2018 wheels are but on my 2012 Turbo the wheels are 7 1/2 and I run 245/40/18.
 

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Discussion Starter #6
Don’t know how wide the 2018 wheels are but on my 2012 Turbo the wheels are 7 1/2 and I run 245/40/18.
18 by 7.5 et 52.5 on the sonata sport wheel. But I'm going to swap for the elantra sport wheel which is 18 by 7.5 et 55 but I'm sure I'll still be fine will a 245/40/18

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2017 Sonata Sport 2.0T
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I know on my 2017 Sport with the factory 18" I can use 245-45-18 with no rubbing (I have a friend with a shop and have tried one on because I was thinking of eventually changing to 19" and a little lower. But the 245-45 is a good fit). It increases the overall diameter from about 26" to 26.75" with most brands but this makes a very small change to speedometer accuracy and it been reported that our speedometers are a little off so this will help correct any way. Also the little added diameter helps fill the wheel well gap too.

There are some posts on here with members that have said they have gone to 255-45 -18 on stock wheel but I think it may come very close to rubbing the strut spring perch. Best to find a shop that will mount a set and see.
 

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2018 Sonata Limited 2.0T (Mfg:11/09/17)
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Just for drill:

Comparing factory 235/45-18 to a 265/40-18 size.
Specs identical except for 1.10" width difference.
 

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