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03-05-2013, 07:40 AM
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#421
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Rivet Master
1977 31' Sovereign
1985 25' Sovereign
South Central Rockies...
, "...'Stream'n the Dream" thru the USA
Join Date: Apr 2009
Posts: 535
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I feel your pain, Dan! We went through the same episode last summer in Florida running Chinese GY Marathons... Dodged the bullet. Cheers,
Art
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03-18-2013, 07:23 AM
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#423
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Rivet Master
1977 31' Sovereign
1985 25' Sovereign
South Central Rockies...
, "...'Stream'n the Dream" thru the USA
Join Date: Apr 2009
Posts: 535
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Sweet! Nice looking set, Steverino... Be safe.
Art
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03-18-2013, 07:26 AM
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#424
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Moderator
2015 25' FB Flying Cloud
2012 23' FB Flying Cloud
2005 25' Safari
Santa Rosa Beach
, Florida
Join Date: Jul 2006
Posts: 13,153
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Those are really sharp looking wheels!
Brain
__________________
SuEllyn & Brian McCabe
WBCCI #3628 -- AIR #14872 -- TAC #FL-7
2015 FC 25' FB (Lucy) with ProPride
2020 Silverado 2500 (Vivian)
2023 Rivian R1T (Opal)
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03-18-2013, 09:13 AM
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#425
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Rivet Master
2015 25' FB Eddie Bauer
2013 25' FB Eddie Bauer
2012 20' Flying Cloud
Small Town
, *** Big Sky Country ***Western Montana
Join Date: Feb 2010
Posts: 2,860
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Very nice; our old GYMs needed air, so we just had to get the 16" wheels ... and they threw in an EB ... LOL.
__________________
2015 25' Eddie Bauer Int'l FBQ / 2023 Ford Lightning ER
2022 Ford F350 6.2 V-8; equalizer hitch + Shocker air hitch
Honda Eu3200; AIR# 44105; formerly WBCCI 2015.1
Terminal Aluminitis; 2-people w/ 3+ dogs
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03-19-2013, 09:13 AM
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#426
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Rivet Master
1977 31' Sovereign
1985 25' Sovereign
South Central Rockies...
, "...'Stream'n the Dream" thru the USA
Join Date: Apr 2009
Posts: 535
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Love it when that happens!
Quote:
Originally Posted by mefly2
Very nice; our old GYMs needed air, so we just had to get the 16" wheels ... and they threw in an EB ... LOL.
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Good one! That EB should go well with that new air! Hehehe...
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03-19-2013, 08:01 PM
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#427
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4 Rivet Member
2018 30' Classic
Ivins
, Utah
Join Date: Aug 2009
Posts: 424
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Quote:
Originally Posted by mefly2
Very nice; our old GYMs needed air, so we just had to get the 16" wheels ... and they threw in an EB ... LOL.
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That's the way to do it! straight from the source!
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03-20-2013, 07:21 AM
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#428
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4 Rivet Member
2007 27' Safari FB SE
LONDON
, ON
Join Date: Dec 2006
Posts: 276
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Just wondering what air pressure people are using with the new tires.
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03-20-2013, 08:59 AM
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#429
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4 Rivet Member
2013 27' FB Classic
Clermont
, Florida
Join Date: Mar 2007
Posts: 431
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Quote:
Originally Posted by SilverCottage
Just wondering what air pressure people are using with the new tires.
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I run 80lbs
__________________
Tom & Lori
2013 27 FB Classic Limited
2019 Ford F250 King Ranch 6.7L Diesel
WBCCI 03288 TAC PA-17
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03-20-2013, 11:56 AM
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#430
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Moderator dude
1966 26' Overlander
Phoenix
, Arizona
Join Date: Apr 2002
Posts: 7,497
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Quote:
Originally Posted by SilverCottage
Just wondering what air pressure people are using with the new tires.
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Max
>>>>>>Action
__________________
1966 Mercury Park Lane 4 DR Breezeway 410 4V, C-6, 2.80 - Streamless.
1966 Lincoln 4 door Convertible 462 4V 1971 Ford LTD Convertible 429 4V Phoenix ~ Yeah it's hot however it's a dry heat!
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03-20-2013, 07:22 PM
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#431
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Master of Universe
2008 25' Safari FB SE
Grand Junction
, Colorado
Join Date: Sep 2007
Posts: 12,694
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There is considerable disagreement about air pressure. Some run 80 lbs. in Load Range E tires—that is the maximum cold pressure for those tires. One member's rationale is that is makes the sidewalls stronger and on a trailer that is extra important.
I was running 68 for a while, but I found the tires were wearing as if there were a little too little air in them, so I upped it to 72. Seems fine now.
Some run 65 (max for a Load Range D tire) and some run even less because they want a soft ride. But too low means overheating of the tire and that leads to tire failure. How low is too low? That is not known to me, but if you check the weight for each tire and the tables for that particular tire, you may find out.
Gene
__________________
Gene
The Airstream is sold; a 2016 Nash 24M replaced it.
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03-20-2013, 09:04 PM
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#432
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Moderator
2015 25' FB Flying Cloud
2012 23' FB Flying Cloud
2005 25' Safari
Santa Rosa Beach
, Florida
Join Date: Jul 2006
Posts: 13,153
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I have been running 72 psi in Lucy's Michelin 16's since I got them nearly 40,000 miles ago. It seems to work well. The trailer is still in one piece, and the tires are showing virtually no wear.
Brian
__________________
SuEllyn & Brian McCabe
WBCCI #3628 -- AIR #14872 -- TAC #FL-7
2015 FC 25' FB (Lucy) with ProPride
2020 Silverado 2500 (Vivian)
2023 Rivian R1T (Opal)
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03-20-2013, 09:07 PM
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#433
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Moderator
2004 30' Classic Slideout
Fenton
, Missouri
Join Date: Mar 2002
Posts: 10,401
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Quote:
Originally Posted by SilverCottage
Just wondering what air pressure people are using with the new tires.
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I'm running 80.
Jack
__________________
Jack Canavera
STL Mo.
AIR #56 S/OS#15
'04 Classic 30' S.O.,'03 GMC Savana 2500
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03-20-2013, 09:49 PM
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#434
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Rivet Master
2012 25' Flying Cloud
Battle Lake
, Minnesota
Join Date: Jun 2009
Posts: 7,714
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I've run 80 in the Michelin 16", but will drop to 72 for a softer ride as we tend to load the trailer lightly, and seldom travel in hot weather.
My concern after the last long trip is the worsening condition of roadways in the country, which are also a major reason for using the Andersen hitch and a rear coil spring Ram 1500 truck.
doug k
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03-20-2013, 09:57 PM
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#435
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Rivet Master
1991 34' Limited
Wichita
, Kansas
Join Date: Nov 2008
Posts: 817
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I think that 80 PSI is quite a bit high. Take a look at the pressure chart that Michelin provides for RV tire use found here Michelin North America RV Load & Inflation Tables.
The chart states that you should weigh each end of the axle and use the higher of the two weights for the recommended tire inflation pressure for that axle. Let's say that you have 225/75R16 Load Range E tires with a two axle trailer that weighs 7,200 pounds. Let's just be a little conservative and say that all of the 7,200 pounds is carried by the trailer axles, none by the tow vehicle. OK, to make this example straightforward, we'll assume that the weight is equally distributed on all four wheels or 1,800 pounds per wheel. According to the chart, we should inflate the tires to between 45 and 50 PSI, cold (Single Wheel on each end of the axle). So, 80 PSI is too much and will give the trailer a rougher ride plus over time the center of the tread will wear more than the outsides due to this over-inflation.
Steve
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03-21-2013, 03:05 AM
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#436
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hang up and drive
2010 30' Classic
Carlisle
, Pennsylvania
Join Date: Jan 2011
Posts: 238
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I average around 70 psi, never less than 65-68, never higher than 75. After 10k, not much appreciable wear, and a smooth ride.
Point of order though, I do keep my spare at max pressure (80 psi), as it is ALWAYS easier to remove air on the side of the road to match the other three tires than to add it. Gives me a margin with which I'm comfortable.
__________________
Kyle
2023 Ford F350 Lariat 7.3/4.30 FX4 CCLB
2010 Classic Limited 30
ProPride P3-1400
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03-21-2013, 03:23 AM
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#437
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3 Rivet Member
1976 31' Sovereign
Springfield
, South Carolina
Join Date: Jul 2010
Posts: 237
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My Chicom tires call for 80lbs and that is what I have been running. I have about 5500 miles on them with no visible wear. When I changed to the 5200 lb axles I measured tread depth with a caliper with depth probe and the wear between the front and rear tires is about .015 to .025 difference but then again the bottom of the grooves don't have a flat spot for the probe to contact. Visually I can detect no difference.
Over the winter she has been parked on 2X10 boards under a shed with tires completely covered. It won't be long before we take a short trip of a couple hundred miles for the upcoming season.
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03-21-2013, 06:21 AM
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#438
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Rivet Master
Airstream Dealer
Corona
, California
Join Date: Feb 2002
Posts: 16,497
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Excessive tire pressure just adds to the pounding of the trailer.
Just imagine fork lift tires.
At 80 PSI, those tires certainly DO NOT provide a soft ride for the trailer, that must be offered, OR ELSE.
There is far more to consider beside tire wear.
Andy
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03-21-2013, 06:43 AM
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#439
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4 Rivet Member
2007 27' Safari FB SE
LONDON
, ON
Join Date: Dec 2006
Posts: 276
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Thanks all for the variety of replies. I'll probably keep them at 70-72 on our 2007 27FB with the 16" LTX tires.
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03-21-2013, 07:23 AM
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#440
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4 Rivet Member
2013 28' International
Bozeman
, Montana
Join Date: Dec 2012
Posts: 466
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Quote:
Originally Posted by Inland RV Center, In
Excessive tire pressure just adds to the pounding of the trailer.
Just imagine fork lift tires.
At 80 PSI, those tires certainly DO NOT provide a soft ride for the trailer, that must be offered, OR ELSE.
There is far more to consider beside tire wear.
Andy
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Hi Andy, any recommendations on how to determine tire pressure that won't beat the trailer to pieces nor lead to tire failures? I have a new 28 International being built nest month with the 16" wheel/Michelin tire package. I'm sure the sticker from the factory will say 80PSI like others have reported. At 80, it can't be a smooth ride.
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