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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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Computers manufactured by companies such as IBM, Compaq and millions of others are by far the most popular with about 70 million machines in use worldwide. Macintosh fans note that cockroaches are far more numerous than humans and that numbers alone do not denote a higher life form. -NY Times 1991
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.
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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Computers manufactured by companies such as IBM, Compaq and millions of others are by far the most popular with about 70 million machines in use worldwide. Macintosh fans note that cockroaches are far more numerous than humans and that numbers alone do not denote a higher life form. -NY Times 1991
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.
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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John W. Irwin
2005 Classic 28 "Sabre-Dog III"
2004 Silverado 2500HD Duramax/Allison
WBCCI Region 9 Webmaster, #9632
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).
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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Mike & Joan
WBCCI #1521 New England Unit
07 25' International CCD FB
06 Chevy Duramax/Allison
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.
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.
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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John W. Irwin
2005 Classic 28 "Sabre-Dog III"
2004 Silverado 2500HD Duramax/Allison
WBCCI Region 9 Webmaster, #9632
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.
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!
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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Mike & Joan
WBCCI #1521 New England Unit
07 25' International CCD FB
06 Chevy Duramax/Allison
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