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Old 09-15-2018, 10:38 AM   #1
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Michelin run psi

Just wondering what most of you run with (psi) on your Michelins. We’re towing 2018 Classic 33 with Silverado 2500 HD Duramax. Been using 75 psi but getting some rough riding to trailer.
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Old 09-15-2018, 10:50 AM   #2
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80 for 17 classic with 16 Michelins. All good.
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Old 09-15-2018, 10:59 AM   #3
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Quote:
Originally Posted by DeltaRon View Post
Just wondering what most of you run with (psi) on your Michelins. We’re towing 2018 Classic 33 with Silverado 2500 HD Duramax. Been using 75 psi but getting some rough riding to trailer.
GIYF (Google is your friend)
https://www.michelinrvtires.com/refe...tion-tables/#/
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Old 09-15-2018, 12:48 PM   #4
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60 lbs is good for over 2000 per axle. My loaded axle weight is 7340 (two axles) so I am running 65 this trip. First trip on my new Mickies.

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Old 09-15-2018, 01:11 PM   #5
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Probably you will need to get it all loaded up as you normally travel, then run over the scales to see what weight you have on each axle. If you want to be very OCD about this, measure the weight on each wheel.

Then look at the chart provided by Adventure.AS and use the appropriate pressures. My guess is you are going to be above 9000 lbs gross weight, thus 65 psi is about right.
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Old 09-15-2018, 01:42 PM   #6
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That chart is XPS RIB, not what's on AS.
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Old 09-15-2018, 04:35 PM   #7
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I used to run 75-80. But a post by a long time exceptional Airstream dealer recommends 60-65. Reason is as Ron stated limit rough ride and he said the tires can easily take the weight at this lower pressure
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Old 09-15-2018, 04:39 PM   #8
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80..and no rough ride nor damage in some 35K with LTX tires.
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Old 09-15-2018, 05:14 PM   #9
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72lbs with single axel FC20. Too rough higher and appears to be too much sidewall bulge at 65...
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Old 09-15-2018, 07:12 PM   #10
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Been running 80 psi for 6 years now on my heavy 30' Classic slide out. No signs of stress to the trailer or ill effects on the trailer. This will most likely be my last season on these tires.

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Old 09-16-2018, 06:18 AM   #11
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65psi
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Old 09-16-2018, 11:25 AM   #12
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My axle weights were from a cat scale run. Fully packed and loaded for travel, empty black and gray, full fresh water and propane.

I was surprised it came in so low - but I have a 30' International, so there should be some difference from a Classic.

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Old 09-16-2018, 12:17 PM   #13
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Old 09-16-2018, 03:50 PM   #14
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I just got my new 16” for our Eddie Bauer, had planned to run them at 55 lbs, that figures to slightly over 8000 lbs as I read the chart. Am I missing something?
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