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Which 15" rim width for 12.5" tire?

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Old Aug 31, 2010 | 05:40 PM
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Ante _Up's Avatar
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From: Norman, OK
Year: 1994
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Default Which 15" rim width for 12.5" tire?

Hey guys, looking to get some rims and tires, wanting to know if I should get an 8" or 10" wide rim for a 12.5" tire?
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Old Aug 31, 2010 | 05:54 PM
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From: Houghton, Michigan
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get the 10 inch wide rim you are safe having the tire 4.5 inches wider than your rim but to be on the safe side get the 10s they will look nicer to
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Old Aug 31, 2010 | 06:20 PM
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Depends on how you're going to be using your rig. Most guys that air down for snow or rocks that I wheel with go with 8 inch wide rims, because the narrower rim holds the bead better than a wide rim. If you don't wheel that much and like the looks of the 10 inch wide rim go that way. my.02
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Old Aug 31, 2010 | 06:32 PM
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Originally Posted by Rock Toy
Depends on how you're going to be using your rig. Most guys that air down for snow or rocks that I wheel with go with 8 inch wide rims, because the narrower rim holds the bead better than a wide rim. If you don't wheel that much and like the looks of the 10 inch wide rim go that way. my.02
X2. Also back spacing plays a huge role in appearance and stability. Appearance mostly u must determine how far if at all u want ur tiers t stick out. Every 10" wide rim I bought stick my tiers way out witch I like but everyone is diff.
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Old Aug 31, 2010 | 07:49 PM
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Okay more info...I will be wheeling it at least a weekend a month, and I do like the looks of the tires sticking out. That being said which back spacing do I need for either size? Thanks
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Old Aug 31, 2010 | 08:03 PM
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From: Gilbert AZ/Las Cruces NM
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15x8 with 4"bs is a really nice medium it puts the tire directly centered over the hub, so you will have about 6" of tread past the hub. yet at 4" you dont have to worry about rubbing. I run 33x10/5's on a 15x8 with 4" bs and no flares so it looks like this :
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Old Aug 31, 2010 | 10:14 PM
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Okay cool, that's what mine looks like right now with my 31's, so I want at least that much tire sticking out if not an inch more, and thanks for taking the time to post pics

Last edited by Ante _Up; Aug 31, 2010 at 10:15 PM. Reason: Added a thanks
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Old Sep 1, 2010 | 07:13 PM
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I can't post picks cause I post from my blackberry. But I run 33x12.50 on 15x10s that have 4" backspacing. There rock crusher simulated bead locks from national wheel and tier. I had put on wrangler bushwacker 6" pocket flairs trying not to get pulled over. The with makes the tier look a lot better but I really wanted to keep stock flairs. So just be careful. I did get the flairs for free though. I would sell those rims if ur interested 200 witch is half what I payed. I'm ready to bolt on my 36s on cregers. Just an idea.
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Old Sep 1, 2010 | 09:24 PM
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From: Norman, OK
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Good price, but I'm leaning towards a set of black wheels, but one question...how far would you say your tires stick out?
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Old Sep 2, 2010 | 02:49 AM
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I'm running 15x8's with a 3.25 b.s. With a 33x12.5 tire with no problems at all and that's on a 2inch lift with mild cutting. I would say go with the 15x8's.
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Old Sep 2, 2010 | 06:40 AM
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i have 15/8 stock ford ranger wheels with 33/12.50's with 1.5 spacers and i have no prob. all so have 4in lift did have to do some cutten thou
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Old Sep 2, 2010 | 07:24 AM
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When considering a wheel with decreased B.S. you should also keep in mind that the life of the unit bearing hubs will be affected.

I'm running 35x12.50x15's on a 15x8 alloy rim with 3.25" B.S. My hubs usually give up the ghost after a couple of wheeling seasons. of course this is dependant upon the terrain you wheel on.

Carry a spare and the tools to swap it out if the need arises.
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Old Sep 2, 2010 | 11:20 AM
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Those rims I told u about are black steel with a simulated bead lock ring. Look up what I'm selling if ur interested. They do stick out about 4"
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