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Unread 06-16-2010, 06:46 PM   #1
rwilhite07
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15x8s or 15x10s??

ive always ran no smaller than a 10'' wide rim but ive always had trucks ( 3 tacomas and 2 f-150s ) just got my first jeeps and its on chrome 15x10s and i hate chrome. looking at prices and 15x8s are much cheaper and also looking around on here looks like most people run 15x8 on there jeeps.. what do you guys prefer?

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Unread 06-16-2010, 07:05 PM   #2
misfitXJ_97
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I have 15x10s on my 97 xj with 33x12.50 tires, I like the look and never had issues with them off road,but I never aired down the swampers.
My 03 tj has 15x8s with 35x12.50 tires and I don't like the look but I found out that they hold the bead tighter so if you are airing your tires down to go wheelin they are better.
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Unread 06-16-2010, 07:09 PM   #3
rwilhite07
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alright thanks..
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Unread 06-16-2010, 11:21 PM   #4
RogueSpear2023
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The 15x8 are really optimal for a 12.5" wide tire, very good at holding a bead when aired down, while still providing great on road manners, also 15x8" will reduce you chance of destroying a wheel off road. So basically if you run a 12.5" wide tire you want 15x8". if you run a 13"+ wide tire you need 10" wide wheels.
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Unread 06-16-2010, 11:22 PM   #5
SOLIDJP44
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15x8 on a 12.5 wide tire
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Unread 06-17-2010, 04:55 AM   #6
JeeperDon
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x12.15 tires on a x10 wheel is for posers.
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Unread 06-17-2010, 07:30 AM   #7
Ross
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I have ran both, 8's and 10's. You can air down lower, not much and really not much of an issue for most. If it is I would recommend you run bead locks.

With 10 inch rims you can run on road at a higher PSI. This should give you longer tread life and possibly better gas mileage. The down side to tens is you can tear them up on the trails. They aren't as protected by the tire and will take a beating. Mine where so torn up I had no choice but to get rid of them. They leaked slowly, one was so damaged that I don't think I could ever mount another tire on it again, the others leaked. Another issue with the 10s was I seemed to get more crap in my bead than with my 8's. Plus 8s will tuck into you fender better and won't stick your tires out as much. You can get them with more back spacing which helps to keep them under the jeep better and rubbing less at full flex.

I am happier with 8s.
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Unread 06-17-2010, 07:38 AM   #8
03silversport
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15x8
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Unread 06-20-2010, 03:58 PM   #9
CB3
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There are some good 15 X 9 wheels available today. They were very rare and hard to impossible to find for a few years.

But have recently become a bit more common again.

Trailready and Mamba make them, and also another brand or two whose names I can't think of. Mamba makes a nice variety of BS to choose from.

Last edited by CB3; 06-20-2010 at 04:08 PM..
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Unread 06-20-2010, 04:00 PM   #10
CB3
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Quote:
Originally Posted by Ross View Post
I have ran both, 8's and 10's. You can air down lower, not much and really not much of an issue for most. If it is I would recommend you run bead locks.

With 10 inch rims you can run on road at a higher PSI. This should give you longer tread life and possibly better gas mileage. The down side to tens is you can tear them up on the trails. They aren't as protected by the tire and will take a beating. Mine where so torn up I had no choice but to get rid of them. They leaked slowly, one was so damaged that I don't think I could ever mount another tire on it again, the others leaked. Another issue with the 10s was I seemed to get more crap in my bead than with my 8's. Plus 8s will tuck into you fender better and won't stick your tires out as much. You can get them with more back spacing which helps to keep them under the jeep better and rubbing less at full flex.
I agree with everything you said, but want to add one more thing:
A 10" wide rim giving flatter footprint at street pressures helps tire last longer (as you said), and maybe improves highway gas mileage (as you said), and the flatter footprint helps winter road traction, and is especially effective at reducing side slipping because a flatter footprint at street pressure means outer edges of outer tread lugs contact the road at steet pressures.
I prefer a 15 X 9 for a 12.5 wide R15 tire because I think it offers the best of both worlds. <== That's if a guy wants a 12.5 wide tire.

I'm currently running 15 X 8 with 33 X 10.5 tires and am happy with that, but if I wanted a 12.5 wide tire, then I'd prefer a 15 X 9 wheel.
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Unread 06-20-2010, 06:09 PM   #11
flatlander757
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I run 40x16 tires on a 17x9.5" beadlock. Works great, no problems. FWIW my tires do actually measure 14" wide though, no way you can get 16" from them.
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Unread 11-30-2010, 09:50 PM   #12
misfitXJ_97
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Just read this forum again and I really dislike the guy that said 12.50s on 15x10s are for posers. Not true I have ran 12.50s on a 15x10 with no issue for quite a few years now and never blew a bead, had issues with rubbing the side of the rim on anything on the trail, or any issue with that rim/tire setup on anything from minor rocks to heavily wooded trails. There is a practical way to build a jeep and there is the way you want to build you jeep, i say do it the way you like and make it work and prove the naysayers wrong.
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Unread 12-01-2010, 07:59 AM   #13
Ross
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Quote:
Originally Posted by misfitXJ_97 View Post
Just read this forum again and I really dislike the guy that said 12.50s on 15x10s are for posers. Not true I have ran 12.50s on a 15x10 with no issue for quite a few years now and never blew a bead, had issues with rubbing the side of the rim on anything on the trail, or any issue with that rim/tire setup on anything from minor rocks to heavily wooded trails. There is a practical way to build a jeep and there is the way you want to build you jeep, i say do it the way you like and make it work and prove the naysayers wrong.
I ran 10 inch for a while. I could run them down to about 10pis before I lost air off-roading, never broke a bead.

After a few years my rims where so beat that A couple would lose about 10lbs of air within a few days. One of the rims was so beat i don't think that new tires could have been mounted. I would rip off another wheel weights every time I wheeled (I use BBs now to balance). I had aluminum rims and did rock crawling when I had the rims.


I have 8" steel wheels and I did dent the bead on one of them also but steel can be beat back and even with the dent they have take less abuse the wider 10" rims.

I wouldn't say that 10" rims are for poser but I wouldn't run them again.
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Unread 12-01-2010, 09:24 AM   #14
JeeperDon
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Quote:
Originally Posted by rwilhite07 View Post
... looking around on here looks like most people run 15x8 on there jeeps.. what do you guys prefer?
Is that a trick question? Do you think those 'most people' would run what they didn't prefer? I always figure for off-roading and airing up/down, "tire = 1.5 x wheel" is a good rule of thumb. So 12.5 tires on 8's, etc. I actually run 12.5's on x7 wheels, for many years.
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Unread 12-01-2010, 10:22 AM   #15
YJames90
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12.5 on 7s here. I air down to 10 with no problems
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