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Discussion Starter #1
Well I have any fitment issues fitting a 255 35-18 in the spring. I plan on having them mounted a 18 by 8.5 + 43 wheel (hypergrams). Stock suspension for now. but I also plan getting the St suspensions STX coilovers in the future.
 

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I think you should be fine. I might be needed to cut the inner fender liner a bit if you slam it, but that should be about it.
According to a tire calculator, your setup will stick out 3,5 mm (about 0.137 in) more compared to my setup (235/40/18 on 18 by 8 + 40). And there's easily enough room for that.
 

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Discussion Starter #3
I think you should be fine. I might be needed to cut the inner fender liner a bit if you slam it, but that should be about it.
According to a tire calculator, your setup will stick out 3,5 mm (about 0.137 in) more compared to my setup (235/40/18 on 18 by 8 + 40). And there's easily enough room for that.


I figure the rim would be about 7 mm is out farther than your setup. Plus the extra tire. So wherever your tires are now. My tread pattern itself would be about 17 mm out farther. Think I'll still be fine?
 

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That's what I got:

According to the calculator, most of the additional width will be added on the inside of the wheel.
374346
 

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I'll have to measure it real quick.I ran through the tire calculator and it says that the sidewall will be .82" out farther than stock.
 

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By the way I asked because Firestone Firehawk Indy 500 in a 255 35-18 are on sale on Amazon for $126 a piece.
 

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I'll have to measure it real quick.I ran through the tire calculator and it says that the sidewall will be .82" out farther than stock.
Than stock is the key here. ;)
Stock offset is 55.
Compared to stock, you should be .72" farther out. But I don't think it will be a problem tbh.
 

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Nah bud you should be fine, I'm running 265/35/18 on 18*9.5 wheels at stock height.
 

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Wonky stuff... yours says inner sidewall is .12 further in and mine says .22. So there's 0.1" shifting around somehow.

374349
 

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Discussion Starter #11
Wonky stuff... yours says inner sidewall is .12 further in and mine says .22. So there's 0.1" shifting around somehow.

View attachment 374349

I come up with your number figuring out the proximity of the rim not the oversized tire. When I figure it how I get set the tire sidewall or at least the tread could be .866" farther out. And I would gain a little bit of Clearence on the inside. I think it will be good.
 

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By the way I asked because Firestone Firehawk Indy 500 in a 255 35-18 are on sale on Amazon for $126 a piece.
I run these tires on a the 18x8.5 RPF1's that are et40. No issues on my end. I got them on a sale last year for a 110/each, cant beat the value on these. I also noticed the size was noticeably cheaper than 235 or 245.40s :)
 

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Discussion Starter #13
I run these tires on a the 18x8.5 RPF1's that are et40. No issues on my end. I got them on a sale last year for a 110/each, cant beat the value on these. I also noticed the size was noticeably cheaper than 235 or 245.40s :)


Thanks I shouldn't have an issue then with a 43 offset then.
 

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Discussion Starter #14
I go to I order tires for next summer while I see them online cheap. This is what my shopping cart and ends up looking like LOL.
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