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BFG mud terrain KM2s 10.50, 11.50, or 12.50?

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Old Jan 7, 2011 | 01:47 PM
  #16  
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I cant believe there is a disagreement on an internet car forum!!1!!!1!1
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Old Jan 7, 2011 | 02:01 PM
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Ha! I'm all about it but at least I have some proof. Disagreeing is one thing but coming straight out and telling someone they are wrong and then following with some talk out of your rear is pretty lame.

Not to mention he has a truck with some 32x9.5s on it. That's gotta look like a tractor tire.
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Old Jan 7, 2011 | 03:13 PM
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Originally Posted by HCCAFan
Ha! I'm all about it but at least I have some proof. Disagreeing is one thing but coming straight out and telling someone they are wrong and then following with some talk out of your rear is pretty lame.

Not to mention he has a truck with some 32x9.5s on it. That's gotta look like a tractor tire.
I don't have video of my rig in mud. But maybe snow will be OK. They both take the same kind of tires to get around. Also I made some statements about what I believe works better in deep mud and snow, I didn't call you lame.http://www.youtube.com/watch?v=nZc4us_VzY8&feature=player_embedded#!
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Old Jan 7, 2011 | 04:43 PM
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My apoligies.

I have driven in snow but only for a couple of years and I didn't get in many bad situations so I don't know too much about the really deep stuff. I don't know how it compares to mud in that sense. Most the snow I dealt with was on mountains that had muddish/clay underneath in Korea, and in these cases the skinny tires cut down to traction better.
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Old Jan 7, 2011 | 04:53 PM
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In that vid, it seemed the XJ on relatively tiny tires did as well as anyone else. The big white Chevy has both taller and wider tires than either it or the Ford. The OP was asking about width only. No doubt wider and taller is better.

My point was based purely on width, even though my shorter tires do better than both the Power Wagon's 35x12.5 and the Jeep's 32x11.5s.
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Old Jan 7, 2011 | 05:07 PM
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That XJ was on 31x10.50s and it did real well with the ARB airlockers front and rear, but a long way from as good as the GMC on 54s with a bad engine or the Ford on 40x13.50r17s.
The 21 inch wide boggers ended up pulling both of the others out a couple of times that day. The picture on my Signature is my Blazer on 39.5x13.50r17 competition BFG Krawlers softest, stickiest tires I've ever ran.
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Old Jan 7, 2011 | 05:10 PM
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I run 1050's on a 7" wheel on my old Mazda truck. I am gonna run a 1250 on my 8" wheel on the xj. And like the other guy said, the wider tire and smaller wheel will hold bead better than a wider wheel. I would never run 10" wheels on anything smaller than a 14" tire. And about your power wagon....ever think about the weight difference your dealing with the two vehicles? Truck= heavy. Dosnt matter if you have rubber band skinny tires it's still gonna be heavy
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Old Jan 7, 2011 | 05:10 PM
  #23  
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Originally Posted by HCCAFan
I don't know where you have to go to find where the wider tire is better. It's not hills, not the deep thick stuff, not the thin stuff ...
Sand, most definitely sand. Wider is always better on soft soft sand. There is no traction underneath to dig down to so you really need to float over top it
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Old Jan 7, 2011 | 05:16 PM
  #24  
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Originally Posted by MVDCXJ
Sand, most definitely sand. Wider is always better on soft soft sand. There is no traction underneath to dig down to so you really need to float over top it
Definitely. I pulled out over 100 trucks with the Power Wagon at the beach the past couple of years.
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Old Jan 7, 2011 | 05:17 PM
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Originally Posted by jfiedler
I run 1050's on a 7" wheel on my old Mazda truck. I am gonna run a 1250 on my 8" wheel on the xj. And like the other guy said, the wider tire and smaller wheel will hold bead better than a wider wheel. I would never run 10" wheels on anything smaller than a 14" tire. And about your power wagon....ever think about the weight difference your dealing with the two vehicles? Truck= heavy. Dosnt matter if you have rubber band skinny tires it's still gonna be heavy
The Power Wagon was just a wild card. The Sidekick on 31s and my XJ made my point as far as I was concerned.
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Old Jan 7, 2011 | 07:11 PM
  #26  
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Every company I know of that sells 12.5" tires recomends them on a 8.5" to about an 11" wide wheel. They recomend them due to beads seating properly on the wheels
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Old Jan 7, 2011 | 08:42 PM
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KM2's 33x10.50 on 15x7 rim with factory back spacing = no rubbing at all!
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Old Jan 7, 2011 | 08:51 PM
  #28  
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Skinnies are so much easier to deal with too!
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Old Jan 8, 2011 | 10:28 AM
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Originally Posted by Rock Toy
Sorry, most of this is wrong. I didn't see any vehicle in deep mud in your photos. The HUMVEE is a good stock 4x4, but most seriously modified 4x4s use taller wider tires for deep mud and will go through mud a military HUMVEE would never make it through. That you made it through the mud that your friend on taller tires couldn't could just be your driving skill and the fact that your not in deep mud or that he has open diffs.
In mud that is deep and by deep I mean feet and not inches you need to have wide tires to displace weight same as with driving in really deep snow. ( 2-4 foot not inches )
Originally Posted by HCCAFan
^You haven't a clue what you are talking about. I wouldn't even know where to start.

I guess the best place to start would be you posting a video of YOU going through some "deep mud" with your tires.

Rock toy is correct. DEEP stuff (either snow or mud) you want wide tires aired down to displace weight and "float" across the ground. Shallow stuff maybe ( I generally judge that by whether or not my axle touches) you want narrow tires aired up to cut down to the solid grippy stuff at the bottom.

Take a look at any arctic truck. The one below is the Top Gear Hilux they used to drive to the north pole.
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Old Jan 8, 2011 | 10:32 AM
  #30  
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Originally Posted by Rock Toy
No, actually just the opposite is true. The wider tire on the narrow 8 inch rim has more pressure against the bead when aired down for trail use than the narrower tire. A 10 inch wide rim for a 12.5 tire doesn't hold the bead as well as a 8-8.5 inch wide rim when aired down.
You're right, I don't know what I was thing there. Skinnier rim + wider tire + less chance of bead loss. Either way, I'd still go 10.50.
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