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Old 10-09-2014, 04:53 PM   #15
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TT tires need always be at max sidewall pressure to resist lateral sway. Other considerations are FAR down the list.


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Old 10-09-2014, 04:54 PM   #16
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Travel trailer tires at max sidewall pressure. Is there a reference to support that?
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Old 10-09-2014, 04:56 PM   #17
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Pressure rise and temperature rise were less at 75psi than 80 psi using a certified digital pressure gage when checking ststic pressures and the Dill TPMS when under way. We were around 9,200 trailer losded weight before hitching to ProPrideweight distribution system
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Old 10-09-2014, 04:59 PM   #18
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Sure. Try the TT manufacturers. Ask either of the tire engineers who post here. The problem in upsizing to use 16's is that load range is hard to match




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Old 10-09-2014, 05:20 PM   #19
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If your travel trailer sets in one spot all the time and never moves, it really doesn't matter what the tire pressures are.
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Old 10-09-2014, 05:35 PM   #20
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What pressure do you use 16" Michelin?

Quote:
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If your travel trailer sets in one spot all the time and never moves, it really doesn't matter what the tire pressures are.

When they sit pressure can be upped 10% past max



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Old 10-09-2014, 05:37 PM   #21
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Michelins LT 225-16's, 65-67 cold, triple axle, 1500 miles trip, max speed 65 , max pressure increase 4-5, max tire temp 100 with temps around 90
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Old 10-09-2014, 05:52 PM   #22
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Quote:
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If your travel trailer sets in one spot all the time and never moves, it really doesn't matter what the tire pressures are.
SteveH, that's not a Travel Trailer, that's a Mobile Home!
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Old 10-09-2014, 05:52 PM   #23
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We're hitting the road in the morning so I took the consensus here and used the load information and recommendation of Andrew T. and set them at 65 psi as a good place to start. It's very cool here and early November we'll be in the desert, so will check them along the way.

Slowmover, I did some reading on your max weight recommendation and only found a reference that matches your thoughts when using ST tires. And then the concern was more about overloading and uneven wear ST tires on trailers in general rather than stability. Apparently LT tires are not used enough in our application for a specific recommendation. Maybe one of the expert engineers will weigh in, they often do.

Meantime we have to sort out the wide range of experience and wisdom and settle on something reasonable. For us it looks like 65 psi for our 16" Michelins. If there is sway our ProPride hitch will make it hard to detect, for better or worse.
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Old 10-09-2014, 05:55 PM   #24
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Originally Posted by dkottum View Post
We're hitting the road in the morning so I took the consensus here and used the load information and recommendation of Andrew T. and set them at 65 psi as a good place to start. It's very cool here and early November we'll be in the desert, so will check them along the way.

Slowmover, I did some reading on your max weight recommendation and only found a reference that matches your thoughts when using ST tires. And then the concern was more about overloading and uneven wear ST tires on trailers in general rather than stability. Apparently LT tires are not used enough in our application for a specific recommendation. Maybe one of the expert engineers will weigh in, they often do.

Meantime we have to sort out the wide range of experience and wisdom and settle on something reasonable. For us it looks like 65 psi for our 16" Michelins. If there is sway our ProPride hitch will make it hard to detect, for better or worse.
Doug, I am confident that you will be fine at 65 psi .

Safe travels and have a good winter! We "launch south" on 11/11.
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Old 10-09-2014, 06:02 PM   #25
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Thanks Bob. We may cross paths, we're headed SE first to tour, visit friends and family. No hurry, some of the most interesting experiences are not planned. We're WBCCI# 1211.

Have a great trip as well.
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Old 10-09-2014, 06:05 PM   #26
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Quote:
Originally Posted by dkottum View Post
We're hitting the road in the morning so I took the consensus here and used the load information and recommendation of Andrew T. and set them at 65 psi as a good place to start. It's very cool here and early November we'll be in the desert, so will check them along the way.

Slowmover, I did some reading on your max weight recommendation and only found a reference that matches your thoughts when using ST tires. And then the concern was more about overloading and uneven wear ST tires on trailers in general rather than stability. Apparently LT tires are not used enough in our application for a specific recommendation. Maybe one of the expert engineers will weigh in, they often do.

Meantime we have to sort out the wide range of experience and wisdom and settle on something reasonable. For us it looks like 65 psi for our 16" Michelins. If there is sway our ProPride hitch will make it hard to detect, for better or worse.
Doug,

You will more than likely be fine with 65 PSI in those tires on your trailer. The way to know if you are underinflated is if when towing at highway speeds in hot weather the air pressure increase is 10% or more of static pressure, you need more.
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Old 10-09-2014, 09:08 PM   #27
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Lateral stability is the top reason . . . not causing internal tire damage in turns is the lasting problem. This has been discussed on this forum and elsewhere. The Load & Pressure Tables do not apply to trailer tires.


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Old 10-09-2014, 09:12 PM   #28
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I picked up my new Michelins this week. I lost two ST tires within 300 miles recently so the reason for the change. The dealer knows tires but probably not load etc. They came to me at 70 psi so that is what I will run unless someone changes my mind.
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