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09-10-2019, 11:33 AM
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#1
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Seasoned Camper
Join Date: Sep 2018
Location: Groveport
Posts: 84
M.O.C. #22689
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Wheel Ratings
We just returned from a wonderful trip to Alaska. Now it's time to replace the factory tires. I have read the posts regarding Sailuns and Goodyears and am trying to decide which one to go with. That's not the question. The wheels that came on the trailer are marked for 110 psi maximum. Is that the cold tire pressure or the operating tire pressure? I have a TST TPMS and saw an 8 - 12 psi increase depending on the ambient temperature and which side was facing the sun, so I would be over the limit if that is operating psi. Also, I can't find any markings on the generic spare tire rim. Can we expect that Keystone would use the same rated spare? LOL
Thanks
2019 MHC 321MK
2018 F-350 6.7 PSD, DRW
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09-10-2019, 12:26 PM
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#2
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Site Team
Join Date: Sep 2017
Location: Oro Valley
Posts: 3,930
M.O.C. #20477
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Pressure ratings for tires and wheels are cold pressures. A 110 PSI tire or wheel will handle the 130+ PSI once it gets hot.
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Zack and Donna plus Millie and Ranger
2018 3160RL
"Life is too short to stay indoors, enjoy the ride!"
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09-10-2019, 02:31 PM
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#3
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Montana Master
Join Date: Sep 2017
Location: Tacoma
Posts: 1,567
M.O.C. #20475
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Zack is correct on that. I have seen our as high 128 with no problems on a very hot day of travel.
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Bob & Carol Washington St
2017 HC HM352RL 2018 Dodge 3500 laramie CC LB 4x4
Curt Q25 with puck system, Factory air bags
Happy Trails
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09-10-2019, 04:03 PM
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#4
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,364
M.O.C. #4831
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Also, the generic steel spare wheel is fully capable of 110 PSI.
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Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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09-10-2019, 06:20 PM
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#5
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Montana Master
Join Date: Oct 2015
Location: westminster md
Posts: 2,318
M.O.C. #17894
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I third that, our sailuns will get to 128-129 on a hot day when started out at 110 psi
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2018 Chevy 3500 LTZ Dually Diesel 4x4 CCLB
2011 Montana 3455 SA. 6 point level up. Disc brakes. Curt Q24 Hitch. 5 step glow steps
Progressive EMS. Valterra tank valves. Sailun G637 tires. ARP fridge control. All led lighting. Mor Ryde IS
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09-10-2019, 07:28 PM
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#6
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,659
M.O.C. #9969
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I'm running 17.5" 125 PSI tires and they will get up to 150 on a hot day, 145 even on a cooler day.
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Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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