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05-13-2021, 05:16 AM
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#21
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Montana Master
Join Date: Jan 2015
Location: Taylors
Posts: 562
M.O.C. #15948
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Quote:
Originally Posted by SparkCV
I see what you posted but it doesn't add up. The specs do not match what I posted straight from the manufacturers site. The S637T is the only one in the 235/80R16G and is a 6.5 inch rim. And the rim on the trekwood site that they match with the S637 is only 6 inches. Something doesn't make sense.
And boy, trekwood is really proud of that tire. $417.51 each. Much better prices elsewhere.
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I'm pretty sure the rim width range for the Sailun 637T is 6" - 7.5" with 6.5" being the normal measuring size. The 6.5" has been fully researched before, I just no longer have the reference.
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05-13-2021, 09:47 AM
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#22
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,456
M.O.C. #4831
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Quote:
Originally Posted by SparkCV
The S637T is the only one in the 235/80R16G and is a 6.5 inch rim. And the rim on the trekwood site that they match with the S637 is only 6 inches. Something doesn't make sense.
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Montanas have come with 6" rims since forever. It is a perfectly appropriate size for Sailuns, Goodyear, what ever tire is commonly used.
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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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05-13-2021, 01:12 PM
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#23
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Established Member
Join Date: May 2021
Location: Pullman
Posts: 23
M.O.C. #28686
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Great info! Thank you for all of the help. I think I have enough info to move forward.
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SparkCV
2014 F350 SD 6.7L Diesel Crew Cab 4x4 Short Bed
2011 Montana 3400RL
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05-16-2021, 01:15 PM
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#24
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New Member
Join Date: Oct 2019
Location: Richfield
Posts: 8
M.O.C. #25120
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Customer yesterday was as looking for wheels and tires. I told him to check out Recpro for the wheels and as for tires I recommend Freedom Haulers in a 14 ply, 100 psi . After putting them on our High Country all our camping family had us order sets for them as well. They’re a great tire.
Most of us opted to go with a 235/85-16 so we could gain a little height and give more bed clearance.
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05-16-2021, 02:35 PM
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#25
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Seasoned Camper
Join Date: Jan 2019
Location: Rockford
Posts: 92
M.O.C. #23236
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I have a complete set of wheels and tires. Where are you located. I upgraded to 19.5 boar wheels with Michelin tires rated at 3960# and 87 mph
__________________
Northern Illinois
2018 Ford F350 6.7l diesel dually.
2019 3790RD with Legacy package.
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05-17-2021, 09:08 AM
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#26
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Montana Fan
Join Date: Jun 2012
Location: somerville
Posts: 135
M.O.C. #12636
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Me too.
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05-17-2021, 01:57 PM
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#27
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,734
M.O.C. #12947
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Sure looks like those tires are also 110 psi rated.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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05-17-2021, 02:18 PM
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#28
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Montana Master
Join Date: Jun 2018
Location: Folsom, California
Posts: 554
M.O.C. #21903
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They tread pattern looks exactly like my TransEagle 235/85-16 G rated all steel that I put on my rig.
__________________
'05 F250 6.0 Bullet Proofed - Sold
'17 F350 6.7 Lariet
'02 Montana 3280RL Upgraded a bunch.
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05-23-2021, 07:53 AM
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#29
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Montana Master
Join Date: Sep 2017
Location: Willis
Posts: 896
M.O.C. #20587
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See https://www.trailer-wheels.com/ for rims
See https://simpletire.com/ for tires
Steel rims work fine, especially for the spare unless you are more into the nice looking aluminum rims. But either work with the steel being less money and higher rated.
__________________
2018 Montana 3791RD (SOLD)
2017 Ram 3500 DRW 6.7 Cummins Aisin, B&W RVK3600 (SOLD)
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05-23-2021, 07:56 AM
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#30
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Montana Master
Join Date: Sep 2017
Location: Willis
Posts: 896
M.O.C. #20587
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Also make sure to have steel valve stems if getting 110psi rims
__________________
2018 Montana 3791RD (SOLD)
2017 Ram 3500 DRW 6.7 Cummins Aisin, B&W RVK3600 (SOLD)
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05-23-2021, 05:49 PM
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#31
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Established Member
Join Date: May 2021
Location: Pullman
Posts: 23
M.O.C. #28686
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Thanks for the feedback
I settled on the Sailun S637 235/85R16 and white steel wheels. Nothing fancy, just functional. Thank you for all the suggestions.
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SparkCV
2014 F350 SD 6.7L Diesel Crew Cab 4x4 Short Bed
2011 Montana 3400RL
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05-26-2021, 10:06 AM
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#32
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Montana Master
Join Date: Jan 2009
Location: Centerville
Posts: 1,352
M.O.C. #9051
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Quote:
Originally Posted by SparkCV
I settled on the Sailun S637 235/85R16 and white steel wheels. Nothing fancy, just functional. Thank you for all the suggestions.
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Good choice, its nice to see you listen to the experienced members on this forum. I too run the same tire, and would not run another brand regardless of some that are reported here. Sailuns hands down the best RV tire on the market .
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05-26-2021, 12:12 PM
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#33
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Montana Master
Join Date: Aug 2015
Location: SWFL
Posts: 964
M.O.C. #17801
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WRT wheel width, first check with a reputable shop to see if the Sailun can be mounted on a 6" rim. If so, you wouldn't have to change out your wheels since the Sailun only has to be aired to 80psi to carry 3420lbs (see their load table chart.) OTOH, you'll want to be careful as someone else could unknowingly put the max psi, 110, in the tires.
__________________
2016 Montana 3711FL
2005 Ford F350, 6.0 diesel, short bed
Demco Hitchiker Auto Slide hitch
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06-07-2021, 10:17 AM
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#34
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Seasoned Camper
Join Date: Feb 2015
Location: Warwick
Posts: 72
M.O.C. #16077
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if a rim is rated to 80 psi what happens on a warm day when the temperature goes up to 90 psi or 100 psi?
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06-07-2021, 11:07 AM
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#35
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Montana Fan
Join Date: Apr 2017
Location: Indio
Posts: 103
M.O.C. #19705
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The same thing that happens on a 110lb rim...the pressure increases...in this case to somewhere around 120 to 125 normally, sometimes a bit more with higher temps. The 80lb rim can handle up to 95 to 100 before it might fail or loose bead seal.
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Richard & Judy Blackwell
Indio, Ca.
2014 F350 DRW 4x4 Diesel
2013 3402RL
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06-07-2021, 02:41 PM
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#36
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Montana Master
Join Date: Aug 2015
Location: SWFL
Posts: 964
M.O.C. #17801
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Quote:
Originally Posted by captl27
if a rim is rated to 80 psi what happens on a warm day when the temperature goes up to 90 psi or 100 psi?
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Temps go up in degrees, not psi; its not a factor.
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06-07-2021, 07:29 PM
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#37
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,734
M.O.C. #12947
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Pretty sure the rim max pressure ratings are just like the max tire pressure ratings, cold pressure is what you set them at, and the design is capable of handling the normal pressure increases while rolling, and there is no need to reduce pressure during the day as that will cause you to have to pump them up every morning, back to the cold pressure .
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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06-07-2021, 09:54 PM
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#38
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Montana Fan
Join Date: Apr 2016
Location: Medford
Posts: 498
M.O.C. #18546
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Generally speaking, a 10 degree F temperature increase will increase tire pressure 2 psi. My tire pressure monitor also indicates temperature, but since the sending unit is mounted on the valve stem, and spinning in ambient air, I don't rely on it too much, but i will watch the pressures change, and make a note of which tires show an increase (and therefore are running hotter).
__________________
2016 Montana High Country 310RE
2020 Chevrolet Silverado 3500 HD LT CC 4x4 Duramax
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06-08-2021, 10:28 AM
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#39
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Montana Master
Join Date: Aug 2015
Location: SWFL
Posts: 964
M.O.C. #17801
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Quote:
Originally Posted by rohrmann
Pretty sure the rim max pressure ratings are just like the max tire pressure ratings, cold pressure is what you set them at, and the design is capable......
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Correct.
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06-09-2021, 03:41 AM
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#40
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Montana Master
Join Date: Aug 2009
Location: Grand Rapids
Posts: 1,896
M.O.C. #9561
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everything you wanted to know treadit
https://www.tredittire.com/
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