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Old 03-09-2007, 04:07 PM   #99
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Thanks John. There is a Discount Tire down the street from me a piece, I'll get in touch with them.
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Old 03-09-2007, 04:20 PM   #100
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Maxxis makes a "E" load range trailer tire so why in the world would you use LT? I have a 2007 20' Safari and have already removed my Marathons and replaced them with Maxxis ST225 75R15 10 ply E load range trailer tires. I had a Marathon failure on another make of trailer and friends of mine in NC had 2 Marathon failures. In all instances these were new or fairly new tires and had been pampered - pressure and tires themselves checked frequently. I still use the Marathons as spares - and I carry 2 spare tires for the trailer just in case.
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Old 03-09-2007, 04:21 PM   #101
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I thought using 10ply was a bad idea....not saying I know for sure, but thought I read that here.....FWIW....

Also, my Discount Tire place doesn't carry Maxxis!
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Old 03-09-2007, 04:29 PM   #102
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Before I put the 10 ply E load range tires on I called Airstream. The reason for my call was to find out if the aluminum rims could take the additional pressure since you can run the E up to 80 pounds - I run 70 in mine. I told the person I talked to what I was planning and he did not say it was a bad idea - but again I didn't specifically ask that question. The aluminum wheels by the way are good for up to 90 pounds pressure.
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Old 03-09-2007, 04:36 PM   #103
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Quote:
Originally Posted by Al - K4GLU
Before I put the 10 ply E load range tires on I called Airstream. The reason for my call was to find out if the aluminum rims could take the additional pressure since you can run the E up to 80 pounds - I run 70 in mine. I told the person I talked to what I was planning and he did not say it was a bad idea - but again I didn't specifically ask that question. The aluminum wheels by the way are good for up to 90 pounds pressure.
I have 65# in my Maxxis and I do not plan to exceed that pressure. Given the weight of my trailer, I would not even need to have as much as 65#, but I was told by Discount Tire's Regional Rep that I should always run the Marathons at max pressure, especially in the Texas heat.
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Old 03-09-2007, 09:12 PM   #104
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Quote:
Originally Posted by Silvertwinkie
I thought using 10ply was a bad idea....not saying I know for sure, but thought I read that here.....FWIW....
Andy (aka Inland RV) has advised against using 10ply - but I'm not sure if he is against them in general or against getting them and then inflating them up to 80 PSI (thus cracking your D rated wheels).

See post #4 in:

http://www.airforums.com/forum...tml#post258089

and also post #8 in:

http://www.airforums.com/forum...tml#post325688

enjoy,
leo
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Old 03-10-2007, 06:02 AM   #105
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I can understand why putting 80# of pressure in a rim that was designed to handle only 70# may cause problems, especially with the valve stem. But don't understand why going from an 8ply to a 10ply tire would. Anyone know why?
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Old 03-10-2007, 06:33 AM   #106
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Mike,

If you are the only one that fills your tires, I do not think there would be a problem because YOU know the rim & valve stem are not rated for the tire's potential pressure. The problem would be for people that go to the tire store and ask for 10 ply tires and don't check the pressure after installation.

Since the tire store would probably inflate the tires to the pressure listed on the tire wall, there would be a problem.

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Old 03-10-2007, 06:41 AM   #107
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IIRC, the debate on the 10 ply tires centered around stiffer sidewalls producing a harsher ride and transmitting an excessive amount of shock and vibration into the trailer.......possibly shaking the daylights out of the beast.

I've been investigating 16" rims for my 19CCD with LT225/75R16 Michelins , as I am not comfortable with the Marathons and their 65mph speed rating. I tow 8-10,000 miles a year, mostly out West and need a higher rated tire, especially with a single axel!!

I am now leaning toward the 10 ply Maxxis in 15" to preserve the integrity of the free space in the wheel well. I'll report back when I make the transition.

Thanks for the great info on this thread!!!
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Old 03-10-2007, 07:08 AM   #108
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Quote:
Originally Posted by lewster
IIRC, the debate on the 10 ply tires centered around stiffer sidewalls producing a harsher ride and transmitting an excessive amount of shock and vibration into the trailer.......possibly shaking the daylights out of the beast.
When inflated to 65#, I believe that the increased 10ply sidewall stiffness is way down in the noise when supporting about 2000# of trailer.

By putting my weight on an unmounted tire at the dealer, I couldn't detect a great enough difference in stiffness over my 8ply Marathons to affect a loaded trailer. The same argument could be used for those upgrading from 6ply to 8ply.

No one of my friends has detected excessive vibration after changing to 10ply tires.
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Old 03-10-2007, 07:35 AM   #109
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That's an old motorcyclist's trick

Quote:
Originally Posted by Pahaska
... By putting my weight on an unmounted tire at the dealer, ...
Hmm, I wonder how many plies this fella has?





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Old 03-10-2007, 11:56 AM   #110
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Quote:
Originally Posted by Al - K4GLU
Maxxis makes a "E" load range trailer tire so why in the world would you use LT? I have a 2007 20' Safari and have already removed my Marathons and replaced them with Maxxis ST225 75R15 10 ply E load range trailer tires. I had a Marathon failure on another make of trailer and friends of mine in NC had 2 Marathon failures. In all instances these were new or fairly new tires and had been pampered - pressure and tires themselves checked frequently. I still use the Marathons as spares - and I carry 2 spare tires for the trailer just in case.
What is the speed rating on the Maxxis E's
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Old 03-10-2007, 12:26 PM   #111
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Per the Maxxis website the speed rating for all of their trailer tires is 65. This suits me fine as my personal towing max speed is 65 - have no desire to go any faster. I just want the tread to stay on the tires and for the air to stay in them!
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Old 03-10-2007, 03:27 PM   #112
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Quote:
Originally Posted by TomW
Mike,

If you are the only one that fills your tires, I do not think there would be a problem because YOU know the rim & valve stem are not rated for the tire's potential pressure. The problem would be for people that go to the tire store and ask for 10 ply tires and don't check the pressure after installation.

Since the tire store would probably inflate the tires to the pressure listed on the tire wall, there would be a problem.

Tom
Isn't it safe practice to check cold tire pressure before every trip? If so, over inflation by a tire store wouldn't be a problem.
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