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Old 10-25-2015, 03:08 PM   #11
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Originally Posted by Badfish740 View Post
Found another option-Michelin 325/85/16 XMLs:



They can be hard to find as the supply from the DoD ebbs and flows, and prices can vary quite a bit, but $150 a tire (used-90% tread) is not unheard of. I think 5,070lbs per tire ought to suit a 14,500lb bus just fine
I have a M1101 trailer. It basically has Hummer wheels and tires. They are only D load range tires. They are not rated at 5k. They are also 16.5 wheels not 16 inch. Unless things have changed, I think they are still 16.5 inch. You can find them cheap but you better make sure you have spares because you won't be buying them when you are on a fishing trip in BFE and you get a flat.
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Old 10-25-2015, 05:44 PM   #12
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Mil Spec 315/75/R16.5E Goodyear MTRs are rated for 4540lbs @ 65 psi.
MTRs suck-the tire lugs actually don't clear out. MTs are actually a *lot* better. I was the vehicle control officer for an Air Force ground tactical squadron with 24 brand new, and a few older, HMMWVs of various flavors, and the MTRs would die on us in the sand at the bombing range (Warren Grove Range, if you must know). Some of the older trucks with MTs. We were in the process of backdating our tires to MTs or their Bridgestone equivalent.
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Old 10-25-2015, 09:09 PM   #13
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Originally Posted by crazycal View Post
I have a M1101 trailer. It basically has Hummer wheels and tires. They are only D load range tires. They are not rated at 5k. They are also 16.5 wheels not 16 inch. Unless things have changed, I think they are still 16.5 inch.
We're actually talking about three different sets of tires here. You're referring to Goodyear MTs which are 37x12.5x16.5D:



The lug pattern kind of reminds me of older garden tractor tires. They are rated for 3,850lbs per tire. The tires I had originally started the thread about are Goodyear MTRs, which were developed for the up-armored HUMVEEs and are 37x12.5x16.5E. They have more of a traditional mud tire lug pattern and are rated for 4,540lbs per tire:



The Michelin XMLs, which are referenced in my last post, are not HUMVEE tires at all, they were designed for Light Armored Vehicles like these:

https://en.wikipedia.org/wiki/LAV-25

The Michelin spec sheet I posted has all of the particulars-325/85/16 (not 16.5), rated for 5070lbs @65psi

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Originally Posted by crazycal View Post
You can find them cheap but you better make sure you have spares because you won't be buying them when you are on a fishing trip in BFE and you get a flat.
I realize that buses in regular service don't usually carry spares, but I wouldn't go anywhere without at least one. You're not allowed on the beach without at least one spare. In the North Maine Woods permit areas you're advised to carry two.

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Originally Posted by Scooternj View Post
MTRs suck-the tire lugs actually don't clear out. MTs are actually a *lot* better. I was the vehicle control officer for an Air Force ground tactical squadron with 24 brand new, and a few older, HMMWVs of various flavors, and the MTRs would die on us in the sand at the bombing range (Warren Grove Range, if you must know). Some of the older trucks with MTs. We were in the process of backdating our tires to MTs or their Bridgestone equivalent.
The reviews I've seen are really mixed. I actually have a set of civvy MTRs on my Toyota and am pretty happy with their performance in both mud and rocks:



From what I've read, the rockcrawlers say that they don't flex enough when aired down (MTs or MTRs) and that they gash too easily as a result. The mud boggers complain that they don't self clean well enough. What seems to be the consensus though is that they are a pretty decent "all around tire" that doesn't do any one thing particularly well, and that they are a cheap way to get maximum differential clearance.

The XMLs on the other hand get pretty good reviews in terms of sidewall flex and self cleaning, but as I said, availability seems to be spotty. Do you have any experience with those? BTW, I'm pretty familiar with Warren Grove:



Took some buddies down to Bass River State Forest for some camping and four wheeling last summer. When we hit this gate one of them got on the radio and asked where the hell I was taking them
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Old 10-25-2015, 10:09 PM   #14
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I realize that buses in regular service don't usually carry spares.
That may be but a usual route might be a radius of 10-20 miles from a bus barn with a mechanic that has spares.
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Old 10-26-2015, 05:43 AM   #15
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That may be but a usual route might be a radius of 10-20 miles from a bus barn with a mechanic that has spares.
Exactly-what I'll probably do is find a way to mount two spares on the rear-the MTRs and XMLs both weigh about 100lbs, plus about 30lbs for the wheel, so not that bad, especially compared to a fullsize bus tire and wheel combo.
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