255/75R17s on a 17x9 rim...what's the deal? - Jeep Wrangler Forum
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Old 05-01-2014, 09:33 PM   #1
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Talking 255/75R17s on a 17x9 rim...what's the deal?

I herd you can put the stock Rubi tires, 255/75R17s on 17x9 rims...does anyone have any experience/first hand knowledge of the Pros/Cons with doing this?

I just got a 2011 JKU Rubi (My 3d Jeep)and it has new tires, so I want to explore options:
I want a wider stance/stability and was hoping (with the correct back spacing 4.25< rims) this will accomplish this. Also plan on the OME 2-2.5" lift,

any feedback will be greatly appreciated...

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Old 05-02-2014, 07:16 PM   #2
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I don't see why you couldn't. I have 17x8.5 rims with stock Rubicon tires.

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Old 05-02-2014, 07:32 PM   #3
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I'm no tire expert but x9 might be pushing it. I believe the specs for the Tires are 7-8.5
That tire is "narrow" and the rim is wide. Also, backspacing plays a role if the tires are wide like 11-12 so you need to push back out and back-away from the wheel well etc..

If the rims were 17x8.5, then go for it as mikeJKUR states. But , if your wheeling just don't air down past 20psi.
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Old 05-02-2014, 07:39 PM   #4
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That rim would match up better with a wider tire. IMO your would benefits would be better performance on and off road.
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Old 05-04-2014, 01:23 PM   #5
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Thanks Guys, much appreciated! There are so many flippin options it's a bit overwhelming... I didn't really think the 17 x 8.5 vs. 17x9 would make a difference with stock tires, but I guess every 1/2" counts! mikeJKUR; got any photos of your Rubi with the 17x8.5s?
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Old 05-04-2014, 01:29 PM   #6
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mikeJKUR; got any photos of your Rubi with the 17x8.5s?
Sure do.



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Old 05-04-2014, 01:42 PM   #7
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Just to add a little more info to it...

You can look at it mathematically to get an idea... a 255mm section width tire comes out to 10" approx. All wheels will essentially measure one inch wider rim-to-rim than their "size", ie. a 17x9 will actually be 10" wide at the edges. And, since almost all tires are categorized slightly wider than the actual width of the shoulder blocks, your 255s will likely present a tread that is just narrower than the full width of the wheel. This will likely look a little funny.

A good example is the stock 16s with 225 tires on them. The actual tread width is a mere 6.5".. barely 8" where the last breath of tread meets the sidewall. The overall width of the wheel is 8.5". Consequently, it looks silly.

There's a photo somewhere on here of the 255 SR-As on a 17x8.5 and they look okm but just barely.

Ideally (aesthetically anyway), you want the tread to be as wide as the full width of the wheel. Tractionally, you want the widest tire you can safely fit on the wheel. Tirerack lists the tread width for most tires. Rule of thumb seems to be subtract 2" from the section width to get tread width.
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Old 05-04-2014, 01:57 PM   #8
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Thanks for the pics Mike...looks great. That makes things a bit easier RapidDissent, I don't want my JK looking 'silly'!! The 17x8.5 look good on Mikes rig; my issue is I got my JK with new rubber and was exploring what options I have - thanks again guys
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Old 05-04-2014, 02:47 PM   #9
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The recommended wheel width for 255/75R17 size tires is 6.5-8.5"
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Old 05-04-2014, 04:14 PM   #10
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35/12.5/17 nitto mud grapplers on factory rubicon wheels no problem.
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Old 05-22-2014, 07:17 PM   #11
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I've been following this thread as been very helpful. I'd like to upgrade my wheels but not change tires yet (they're only 11 mo old and have a good bit of life in them, plus I can't afford wheels AND tires). I've been checking out the Rockstar II wheels because I want to have them custom painted. If I go with the 17x8 wheels, will they fit my stock tires, which are 255/75/17s or do I need to look into other options?
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Old 05-22-2014, 07:58 PM   #12
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I've been following this thread as been very helpful. I'd like to upgrade my wheels but not change tires yet (they're only 11 mo old and have a good bit of life in them, plus I can't afford wheels AND tires). I've been checking out the Rockstar II wheels because I want to have them custom painted. If I go with the 17x8 wheels, will they fit my stock tires, which are 255/75/17s or do I need to look into other options?
I think I answered this is another thread but yes your stock tire (255/75R17) will fit that17x8 rim.
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Old 05-22-2014, 08:07 PM   #13
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Perfect - thank you! Sorry if I missed your other response. For some reason I almost never get notifications even though I'm subscribed to threads.
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Old 05-22-2014, 08:15 PM   #14
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Perfect - thank you! Sorry if I missed your other response. For some reason I almost never get notifications even though I'm subscribed to threads.
No worries, bro! They're some nice looking wheels... Post some pics when you get them on!
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Old 05-22-2014, 08:28 PM   #15
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I definitely will!
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Old 05-22-2014, 10:46 PM   #16
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Stock Rubicon tires with 17x9 wheels. Fills them out nicely but you lose a little height.
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Old 05-23-2014, 06:54 AM   #17
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I wouldn't put a tire with 7.5" of tread width on a wheel that's 9" wide between the beads (and therefore 10" wide lip to lip). That would look goofy and would be more likely to lose the bead. But maybe that's just me...

A narrow 255 tire really needs a 7" wheel.
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Old 06-05-2014, 03:37 PM   #18
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here's what I got when I inquired about this at quadatrec
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