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Anyone Gone with Wider tires on OE Wheels?

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Old 11-13-18, 03:50 PM
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NextLevelG
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Default Anyone Gone with Wider tires on OE Wheels?

I'm looking at replacing my tires soon and would like to go with a little wider setup. I was looking at upgrading from the factory 255/35-19 Front and 275/35-19 Rear to a 265/35-19 and 295/30-19 set of tires on the factory wheels. The factory wheels are 19x9 and 19x10 so It looks like they should fit on the wheels ok but I wan't sure about any rubbing issues. I've seen others say they used 20mm spacers without rubbing so I figured this should fit.

Let me know what you guys have done in the past.

Thanks
Old 11-13-18, 05:54 PM
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flowrider
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I have RCF wheels on my ISF. Running Bridgestone S-04 255/35/19, 295/30/19. IMO, putting 265/35, 295/30 on an RCF will upset the front to rear stagger on the RCF. Stock ODs have the front wheel @26" rear @ 26.6" - you're proposing 26.3" front and 26" rear.

Lou
Old 11-14-18, 07:39 AM
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MasterWork
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Have you considered sticking with the factory Michelin Pilot Super Sports, but switching to the XL variant? They will fit slightly wider as the name suggests. This will be the route I take when it comes time to replace tires on mine.
Old 11-14-18, 08:50 AM
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shenry500
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Originally Posted by flowrider
I have RCF wheels on my ISF. Running Bridgestone S-04 255/35/19, 295/30/19. IMO, putting 265/35, 295/30 on an RCF will upset the front to rear stagger on the RCF. Stock ODs have the front wheel @26" rear @ 26.6" - you're proposing 26.3" front and 26" rear.

Lou
I'm confused on these numbers. So a 265 on the front and a 295 on the rear would equal wider fronts? What do you mean by OD? I've also been interested in wider all around. Hankook V12 Evos seem to fit the bill for price/performance/size...

Edit: Ok I think you're talking about diameter not width. If so, will this really throw off anything much since it's a small difference?
Old 11-14-18, 12:29 PM
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Originally Posted by MasterWork
Have you considered sticking with the factory Michelin Pilot Super Sports, but switching to the XL variant? They will fit slightly wider as the name suggests. This will be the route I take when it comes time to replace tires on mine.
No, tire dimensions are the same. XL refers to Extra Load, the tire construction is different. XL has stiffer sidewalls. I don't understand why Lexus used SL, Standard Load tires on the RCF and GSF

Lou
Old 11-14-18, 12:32 PM
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Originally Posted by shenry500
I'm confused on these numbers. So a 265 on the front and a 295 on the rear would equal wider fronts? What do you mean by OD? I've also been interested in wider all around. Hankook V12 Evos seem to fit the bill for price/performance/size...

Edit: Ok I think you're talking about diameter not width. If so, will this really throw off anything much since it's a small difference?
Yes, Outer Diameter. I realize it's a small difference, but it's throwing the OEM stagger off. Will it have an adverse effect - I'm not really sure. But, if it were me, I would not do it.

Lou
Old 11-14-18, 05:34 PM
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texaslexii
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Adding to this, has anyone gone to a 40mm sidewall up from a 35? How about going to a 100Y load? I want to do this on mine

Front Pilot Sport A/S 3+
265/40ZR19 5-Rib Tread Design 98W

Rear Pilot Sport A/S 3+
285/40ZR19 6-Rib Tread Design 103Y
Old 11-14-18, 05:57 PM
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^^^^You are mistaken in your description of what the 35 or 40 designation in the size of a tire stand for. It is the aspect ratio and is a percentage of the tire's width at it's widest point. Therefor a 285/35 tire would have a sidewall of 35% of 285 or 99.75mm (3.93") and so on. IMO, a 40 aspect tire is not a good idea.

Lou
Old 11-14-18, 06:16 PM
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texaslexii
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Originally Posted by flowrider
^^^^You are mistaken in your description of what the 35 or 40 designation in the size of a tire stand for. It is the aspect ratio and is a percentage of the tire's width at it's widest point. Therefor a 285/35 tire would have a sidewall of 35% of 285 or 99.75mm (3.93") and so on. IMO, a 40 aspect tire is not a good idea.

Lou
You know what I mean... Why is a 40 tire a bad idea? <b>I just want more sidewall to tamper the stiff suspension along with coilovers
Old 11-14-18, 07:00 PM
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shenry500
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Originally Posted by texaslexii
You know what I mean... Why is a 40 tire a bad idea? <b>I just want more sidewall to tamper the stiff suspension along with coilovers
It will look you have truck tires on your gsf lol. Ok ok slightly exaggerating but it WILL probably not look as good. Something like this pic comes to mind .

Old 11-14-18, 07:02 PM
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texaslexii
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Oh come on, LAWL... It wont be that bad.

Ok so how about 255/40 and 275/40 instead?

Originally Posted by shenry500
It will look you have truck tires on your gsf lol. Ok ok slightly exaggerating but it WILL probably not look as good. Something like this pic comes to mind .

Old 11-14-18, 09:09 PM
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Originally Posted by texaslexii
Oh come on, LAWL... It wont be that bad.

Ok so how about 255/40 and 275/40 instead?
Try this site if you haven’t already. It gives you exact measurements and pictures of tire size comparisons. Click on “tire comparison” and check it out.

https://tiresize.com/calculator/

Personally I like the stiff ride and it’s way better than my Sho was with coil overs. Any increase in sidewall height to me looks less sporty and more like a “regular” car. Just my opinion. You may find the extra height is a good trade off for the softer ride although I’m not sure how much it will help.
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Old 11-14-18, 10:19 PM
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If you don't care about how the suspension performs, then run whatever you like. The problem is, when you move the center of the contact patch up or down by changing the diameter of the tire, you upset just about every measurement critical to good handling. The likelihood the car will handle better is very small. You might like the feel of the ride with more sidewall height, but that'll be about all.
Old 11-15-18, 01:26 AM
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Originally Posted by shenry500
I'm confused on these numbers. So a 265 on the front and a 295 on the rear would equal wider fronts? What do you mean by OD? I've also been interested in wider all around. Hankook V12 Evos seem to fit the bill for price/performance/size...

Edit: Ok I think you're talking about diameter not width. If so, will this really throw off anything much since it's a small difference?
Here are two videos I took. The first one was when I got the car with Michelin PSS.
The 2nd one is with the Hankooks Ventus Evo 2's and spacers.

Thought it might help give you an idea, the Hankooks do look chiunkier IMO.



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Old 11-15-18, 06:34 AM
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Originally Posted by flowrider
No, tire dimensions are the same. XL refers to Extra Load, the tire construction is different. XL has stiffer sidewalls. I don't understand why Lexus used SL, Standard Load tires on the RCF and GSF

Lou
Thank you for correcting me and pardon my ignorance (Tire specs were never my strong suite), I was simply going off past experience on previous cars with SL and XL tires and noticing a substantial fitment change when switching from one to another. I will be going with the XL PSS variants very soon as I think they are better suitable for NY roads and will report back if any width changes come about.


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