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285/30 or 265/35 18 federal rs-r?

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Old Feb 16, 2014, 04:26 PM
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285/30 or 265/35 18 federal rs-r?
Is there anyone who runs these tires? I'm wondering if one size vs the other has a benefit on a 10" rim. I would prefer the shorter tire personally but I have an ix/rs and I don't want to work against myself gearing wise for ax.


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Old Feb 16, 2014, 04:27 PM
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http://www.federaltire.com/download/spec595RS-R.pdf

285 is 7/10 shorter

285 is 7/10 wider
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Old Feb 16, 2014, 04:31 PM
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265/35/18 would be perfect on a 10" rim.. Definitely won't stretch
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Old Feb 16, 2014, 05:02 PM
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I'm just worried about the extra height . Think that will hurt me?

285 lands square in the 10" rim while 265 10 is the upper range.

Good info though
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Old Mar 2, 2014, 02:29 AM
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Originally Posted by 211ratsbud
I'm just worried about the extra height . Think that will hurt me?

285 lands square in the 10" rim while 265 10 is the upper range.

Good info though
In term of rolling diameter,265/35/18=235/45/17
How about 275/35/18??Those should seat nicely on 10" wheel and you get a tad taller tyre than stock
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Old Mar 3, 2014, 09:48 AM
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The federal is only available in 265 or 285
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Old Mar 4, 2014, 06:08 AM
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I have the 265 federals on 18x9 +35 I couldn't imagine going any bigger
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Old Mar 4, 2014, 06:45 AM
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My advice is to go with the 265's. The Federal RS-R is a pretty wide tire and I firmly believe the size ratio on the sidewall isn't accurate. I currently have a set of 235/45/17's on my stock BBS Evo IX SE rims and they are a lot wider than the OEM Advan's. They're just as wide as my buddies 255/40/17 NT05's. Here is a thread I found a while back comparing 255/40/17 NT05's to 255/40/17 RS-R's. You'll notice how much wider the Federals are over the Nitto's even though they're both rated 255mm wide. It almost seems like 255mm wide Federals could really be 265-275mm wide. So I would assume that the 265 wide RS-R you're looking at is more like a 275mm tire while the 285 could be upwards of 295 or 300ish.

https://www.evolutionm.net/forums/mo...-595-rs-r.html
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Old Mar 4, 2014, 08:01 AM
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Excellent info. What about the recommended rim width? My widebody shipped today

Also are they taller than they suggest ?
Last edited by 211Ratsbud; Mar 4, 2014 at 08:11 AM.
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Old Mar 4, 2014, 09:22 AM
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Originally Posted by 211ratsbud
Excellent info. What about the recommended rim width? My widebody shipped today

Also are they taller than they suggest ?
Tire diameter was spot on, just the width was wider than stated. And the AIT body kit?!
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Old Mar 4, 2014, 10:46 AM
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Originally Posted by e_kobz
Tire diameter was spot on, just the width was wider than stated. And the AIT body kit?!
yup
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Old Mar 4, 2014, 11:15 AM
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Originally Posted by 211ratsbud
yup
Well in that case you should run the 285's I thought you were trying to fit these under the stock fenders. Those AIT fenders are really wide. Remember my buddies Evo that I showed you, he's on 18x11 rims with 305's and he still has room to spare. Go bigger if you can. I just thought you were trying to squeeze them under the stock fenders.
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Old Mar 4, 2014, 01:00 PM
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That's what I'm sayin! Hah!
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Old Mar 4, 2014, 01:14 PM
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Originally Posted by 211ratsbud
That's what I'm sayin! Hah!
Make it happen. And I can't wait to see pictures
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Old Mar 4, 2014, 02:32 PM
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There will be pictures
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