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Unread 11-10-2013, 05:54 PM   #1
i6zombiejeep
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Trying to fit mud tires on my Grand..

Well, I found some cool looking rims for my 98 Jeep. They are 15x10s, and I would like to run 31s. A 31/12.5 tire would be okay for this wide of rim, right? I keep seeing posts that you need at least 33s, but I can't fit those.. lol what is the metric equivalent for this size? Any help is greatly appreciated!!! Thanks,
Jeff

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Unread 11-10-2013, 06:07 PM   #2
Technohead
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Find some 8"-8.5" rims. 10" is too wide.
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Unread 11-10-2013, 06:17 PM   #3
i6zombiejeep
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Thanks for the quick reply, and yeah, that's what I keep seeing is to just get different rims. But I like the offset so that they'll stick out and give the Jeep a little stance. They are really wide, but I want to take advantage of them because I am building on a college student budget...
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Unread 11-10-2013, 07:28 PM   #4
WhiteOut
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If you run a 12.5" wide tire on a 10" wide rim, don't bother airing down since you'll just pop a bead. You'll probably rub control arms as well depending on the backspacing on the rims.

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Unread 11-11-2013, 06:59 AM   #5
PolkaPower
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The tire maybe 12.5 at the tread but it gets skinnier at the bead. 10" is too wide. Get an 8" rim with 3.75-4" of B.S.
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Unread 11-11-2013, 07:41 AM   #6
slprwgn
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i am running 12 inch wide wheels with 3.5 backspacing... now im not a street rig but i have no issues out of them, no rubbing, and i run a 15 inch wide tire on them.... as for 12.5 too wide for 10 inch wide rim, no way... it will run just fine on that wheel, i have plenty of friends running that 12 and 13 inch wide on 10 inch wheels...

i agree on the mean stance look, i think it will look awesome
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Unread 11-11-2013, 09:57 AM   #7
PolkaPower
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Quote:
Originally Posted by slprwgn View Post
as for 12.5 too wide for 10 inch wide rim, no way... it will run just fine on that wheel, i have plenty of friends running that 12 and 13 inch wide on 10 inch wheels...

i agree on the mean stance look, i think it will look awesome
It's not an opinion, it's a fact that a 12.50" wide tire on an 8" rim will hold a bead better, perform off road better when aired down(not spinning on the rim), and the tire will wear better than on a 10" rim.

What looks better is debatable.

http://www.pirate4x4.com/forum/jeep-...rim-width.html
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Unread 11-11-2013, 11:23 AM   #8
i6zombiejeep
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Well shoot. I'll begin my search for some narrower rims.. Thank you guys for the replies, and it makes sense. I was worried that the bead would have a hard time holding. This Jeep is going to see a lot of snow, and therefore a lot of airing down. I realllllyyyyy want some of those AEV wheels. They look sweet!
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Unread 11-11-2013, 05:41 PM   #9
zjilla
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Quote:
Originally Posted by slprwgn View Post
i am running 12 inch wide wheels with 3.5 backspacing... now im not a street rig but i have no issues out of them, no rubbing, and i run a 15 inch wide tire on them.... as for 12.5 too wide for 10 inch wide rim, no way... it will run just fine on that wheel, i have plenty of friends running that 12 and 13 inch wide on 10 inch wheels...

i agree on the mean stance look, i think it will look awesome
Are they airing down? Using beadlocks? Or wheeling at 30+psi?

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Unread 11-12-2013, 12:32 AM   #10
i6zombiejeep
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Beadlocks are no good for highway use, correct? How exactly do beadlock rims work?
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Unread 11-12-2013, 02:27 AM   #11
kg6mov
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Internal beadlocks like the hummer h1 rim are legal for highway use, external beadlocks like most offroad wheels are not. They will perform fine on the highway but the failure mode of the rim involves the tire trying to pass the jeep, which is unadvisable.
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Unread 11-12-2013, 09:10 AM   #12
WhiteOut
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Quote:
Originally Posted by kg6mov View Post
Internal beadlocks like the hummer h1 rim are legal for highway use, external beadlocks like most offroad wheels are not. They will perform fine on the highway but the failure mode of the rim involves the tire trying to pass the jeep, which is unadvisable.
What law the bans the use of beadlock wheels on highways? (Not inspection rules and no "DOT Certified" stuff)

Failure of a non-beadlock wheel will produce the same effect.
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Unread 11-12-2013, 09:19 AM   #13
PolkaPower
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They would not pass inspection in this god forsaken state for sure.


http://www.liftlaws.com/are_beadlocks_street_legal.htm
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