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Old 01-29-2014, 02:58 PM   #1
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Tire pressure with T03s and Michelin LTX

To those on this thread.. What tire pressures on you running in your T03s and Michelin LTX MS/2 16 inch tires.. Received and installing this week on my 27 FB Sterling. I know the tire is rated at 80 psi.. just wondering if anyone has any experience with lower pressures on a similar sized trailer.. for purposes of smoothing out the ride ..

Thoughts..
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Old 01-29-2014, 03:34 PM   #2
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To those on this thread.. What tire pressures on you running in your T03s and Michelin LTX MS/2 16 inch tires.. Received and installing this week on my 27 FB Sterling. I know the tire is rated at 80 psi.. just wondering if anyone has any experience with lower pressures on a similar sized trailer.. for purposes of smoothing out the ride ..

Thoughts..
I run 70 PSI on my 28ft international with good results.

80 psi is the maximum pressure for this tire and I do not believe max is needed with my GVW.
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Old 01-29-2014, 04:06 PM   #3
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I have settled in at 75psi after weighing and trying various pressures.
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Old 01-29-2014, 04:15 PM   #4
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Thanks for the replies.. Will experiment when i get them on .. Just needed a starting point from a few folks that have already been down that path...

Much appreciated..
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Old 01-29-2014, 04:47 PM   #5
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run ours at 70psi
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Old 01-29-2014, 06:50 PM   #6
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Michelin has a load table on their web page so maybe the best would be to use the pressure corresponding to the tire load. On my 20 ft AS it come to about 70 psig but on double axle it may be less. Less is good because of the smoother ride.
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Old 01-30-2014, 03:31 AM   #7
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After looking at the chart and scale tickets, I dropped my pressure down to 45 PSI. Higher than the chart calls for but lower than the 72 psi I was running.
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Old 01-30-2014, 03:41 AM   #8
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80

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Old 01-30-2014, 05:29 AM   #9
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I currently use 70 psi for my 27'FB. Seems to run smooth and no heat build up. I may change as I have more experience in warmer weather.
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Old 01-30-2014, 06:17 AM   #10
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Just lowered the trailer off the jacks onto the new T03's and 16" Michelins yesterday. I filled them to 70 psig. We leave for AlumaFiesta tommorow. I plan to place a couple of items on the floor to see if they stay put during the trip. I wish I had a camera to film what goes on back there while towing.
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Old 01-30-2014, 07:33 AM   #11
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70 so far. May check and adjust later.

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Old 01-30-2014, 08:10 AM   #12
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We have settled on 70. Seems to work well.
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Old 01-30-2014, 08:27 AM   #13
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Airstream recommends 80, the maximum. Andrew Thomson, long-time owners of Can-Am Airstream and towing specialist recommends much less for a better ride to save damage to your trailer, and using tire manufacturer charts. Tire engineers have come on the forum to recommend using charts.

Take your pick. I'm confused as hell about it, been using 80 but leaning toward 70 wondering if 60 is best.
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Old 01-30-2014, 09:00 AM   #14
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Everybody has a theory and/or idea. There's obviously a "perfect pressure" for any given set of conditions. However, conditions change frequently. There is a very long informative set of posts by a tire engineer on another thread, that explains why you can not use the pressure vs load tables without a correction factor for a truck tire when it is used in trailer service. My answer is to use the sidewall pressure. However you will find some contentious threads on this subject. I always use 80 PSI.

Just a point, 80 PSI is not the max rated pressure for the tire. It is simple the pressure at which it is rated to carry the max load. There is a difference. This is also explained elsewhere. I would recommend that you review the posts by user Capriracer. He is a tire engineer. Below is a link to his posts. This will get you to a bunch of threads on tires also.

http://www.airforums.com/forums/sear...archid=2599800

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Old 01-30-2014, 09:14 AM   #15
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Originally Posted by Ag&Au View Post
Everybody has a theory and/or idea. There's obviously a "perfect pressure" for any given set of conditions. However, conditions change frequently. There is a very long informative set of posts by a tire engineer on another thread, that explains why you can not use the pressure vs load tables without a correction factor for a truck tire when it is used in trailer service. My answer is to use the sidewall pressure. However you will find some contentious threads on this subject. I always use 80 PSI.

Just a point, 80 PSI is not the max rated pressure for the tire. It is simple the pressure at which it is rated to carry the max load. There is a difference. This is also explained elsewhere. I would recommend that you review the posts by user Capriracer. He is a tire engineer. Below is a link to his posts. This will get you to a bunch of threads on tires also.

http://www.airforums.com/forums/sear...archid=2599800

Ken
Ken, spot-on
Btw, I am afraid the link doesn't work as you intended.
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Old 01-30-2014, 09:28 AM   #16
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This was a pretty good thread.

http://www.airforums.com/forums/f438...se-108451.html
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Old 01-30-2014, 09:42 AM   #17
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That's weird, it works for me. Are you logged in? I'm guessing you are.

I got that link by searching the member list for "Capriracer". Then went to his profile page, Clicked on statistics and then "the find all post by him" link. What I posted is the URL for the resulting list. Maybe it only works for me because that page is cached on my computer.

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Old 01-30-2014, 09:48 AM   #18
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Keep in mind that thread is not specifically directed to LT tires on trailers. I have to run to an appointment right down, so I don't have the time to find the one I'm thinking about. I don't believe it's this one.

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Old 01-30-2014, 10:03 AM   #19
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80 PSI Not Max Pressure?????

I think if you take the time to read the specs on the side of the tires or go to the tire rack website you will find that 80PSI is this max recommended air pressure for the 16 inch Michelin LTX by the mfg that builds the tire.
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Old 01-30-2014, 10:21 AM   #20
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I think if you take the time to read the specs on the side of the tires or go to the tire rack website you will find that 80PSI is this max recommended air pressure for the 16 inch Michelin LTX by the mfg that builds the tire.
I have taken the time to read it many times. perhaps you need to read it again to understand what it says. This in a way is a matter of terminology. The side wall of the tire states a max load for the tire and the pressure necessary when carrying that load.

It does not say that is the maximum safe pressure for the tire and in fact it is not. However they do not commonly publish the maximum pressure because it is not of value to the user, because you shouldn't exceed the max load.

I find you choice of words (the highlighted ones) offensive and unnecessary to state your point.

Ken
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