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07-09-2018, 09:47 AM
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#1
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Established Member
Join Date: Feb 2018
Location: Springtown
Posts: 25
M.O.C. #21220
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Fixin to buy Sailun S637s
Need some advice from fellow Monty owners. When I acquired my 2006 3475RLS in 2015, the dealer put new 235x80R16 Transporter tires on it. No doubt they were China bombs. Had a blow out a year ago with minimal damage to the trailer fortunately. My local tire dealer talked me into a set of Trailer Kings. Didn’t do enough home work when I bought them. Only, 3000 miles later I was losing air and found two small bubbles on inside of the tire before leaving on a 1000 mile trip. Dealer replaced it without cost so far. I lost all confidence I had in them. After readin all the posts from ya’ll, Sailuns seem to be the recommended tire(even though China made). The small print on these 235x80R16s (4,080 lbs at 110psi) recomends high pressure wheels. Here is my question- Are my current wheels adequate based on the following or do I buy new wheels also? Trailer GVW is 14,000. Two 6000 lb axles. Hitch weight is 2435. Total weight on axles of trailer is 10,540. Actual weight on left front trailer tire is 2900. Weight on the other three tires is a lesser amount. My wheels are 3750 lbs max rated. Can I safely install the Sailuns on these wheels at 110 psi. I am definitely under loaded. Any suggestions?
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07-09-2018, 09:53 AM
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#2
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,689
M.O.C. #4831
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No your wheels are not suitable for 110 PSI but that shouldn't stop you from installing the Sailuns. Download the Sailun Load Inflation Chart from http://www.montanaowners.com/forums/...?do=file&id=15
and you will see 80 PSI is adequate for your axle/tire load.
__________________
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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07-09-2018, 10:33 AM
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#3
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Site Team
Join Date: Sep 2017
Location: Oro Valley
Posts: 4,082
M.O.C. #20477
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Ford,
Check the back of your wheels, they should be labeled with max PSI. Agree with Carl, even at 80 PSI they are still good tires.
__________________
Zack and Donna plus Millie and Ranger
2018 3160RL
"Life is too short to stay indoors, enjoy the ride!"
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07-09-2018, 11:29 AM
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#4
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Montana Master
Join Date: Sep 2014
Location: Full Timer In Naples, Florida
Posts: 1,049
M.O.C. #15731
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My wheels are the same as ford350man 3750 max pounds. My rims do not show a psi rating. Looking at the chart 235-80-r16 it shows on the duel wheels 3640 lbs at 110 PSi is that not in the range of the current rims we have?. Just checking as im ordering sailuns also.
__________________
2017, 3500 Ram Big Horn, 4x4, Crew Cab, DRW, Aisin Transmission, 4:10. Curt Q20, 2014 Mountaineer 331 RLT, Sailun's on the rv and truck.
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07-09-2018, 12:22 PM
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#5
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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To find the pressure limits on wheels you have to crawl under and look at the back side, but the OEM wheels on a 2006 would have been 80#. 110# wheels started somewhere in the middle of the 2010 model year.
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07-09-2018, 12:30 PM
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#6
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,689
M.O.C. #4831
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Eagleback: I believe you should be using the single wheel chart, not the dual wheel one. You have a single wheel om the end of each axle rather than duals (like a dually truck v. a SRW one). Both the 80 and 85 aspect tires are rated over 3,000 lbs. at 80 PSI which is the limit for 2006 era rims.
__________________
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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07-09-2018, 12:35 PM
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#7
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Montana Master
Join Date: Sep 2014
Location: Full Timer In Naples, Florida
Posts: 1,049
M.O.C. #15731
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OK. I only have a weight not a PSI showing. I even removed the rim and no go on the PSI. so 3750 would only be 80 PSI or maybe 90 PSI max to the 3750 load?
__________________
2017, 3500 Ram Big Horn, 4x4, Crew Cab, DRW, Aisin Transmission, 4:10. Curt Q20, 2014 Mountaineer 331 RLT, Sailun's on the rv and truck.
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07-09-2018, 12:49 PM
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#8
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,689
M.O.C. #4831
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While your wheels have a max rating of 3,750 lbs. there is no way your actual load will approach that value. You have 6K rated axles and should only to expect that amount of weight. But of course you should weigh the axles to see what your actual load is. I bet it is less than 3,000 lbs. per wheel or 6K per axles. 80 PSI will handle your load easily.
__________________
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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07-09-2018, 12:50 PM
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#9
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Montana Master
Join Date: Sep 2017
Location: Tacoma
Posts: 1,567
M.O.C. #20475
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You wont regret running the Sailuns even at 80# they are more tire then the trailer kings that you have I would not run much more than 80# in them you can brake a wheel but you can up grad the wheel at the same time to run the higher tire pressure if you have the bucks to do so.
__________________
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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07-09-2018, 02:26 PM
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#10
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Established Member
Join Date: Feb 2018
Location: Springtown
Posts: 25
M.O.C. #21220
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Fixin to buy Sailun S637s
Thanks to all of you for your quick replies. My wheels only state the 3750 max weight(made in China of course). What I am hearing is these are 80# wheels not safe for 100-110. I was concerned about whether to run the G rated (4080 psi@110#) Sailuns at 80 without damaging them or maybe running hotter than if at 100-110. I’m obviously willing to put enough money in this new setup to provide less risk of a blowout than having to pay thousands in damage to the trailer plus loss of use in the shop. I really appreciate all your advice. That’s the benefit of this forum.
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07-09-2018, 04:55 PM
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#11
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Montana Master
Join Date: Dec 2005
Location: Eugene
Posts: 1,062
M.O.C. #5091
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Took one wheel off my 3000RK built in 2010 and they were 3750# and 110psi.My trailer weight on the wheels is under 10000# Should be fine when I buy the new Sailuns when they come on sale.
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07-09-2018, 05:54 PM
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#12
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Montana Master
Join Date: Aug 2009
Location: Grand Rapids
Posts: 1,898
M.O.C. #9561
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your wheels can accept G rated tires at 110psi. you are not hearing that they won't, don't even start that rumor.
'you put G rated tires on your wheels you can go up to 110psi. 'A "G" rated 235/85R16 has a rating of 3750 @ 110psi.
read a comment on etrailer. https://www.etrailer.com/question-29672.html
and rule of thumb is to:' Trailer tires should always be inflated to the maximum psi listed on the tire to avoid excessive heat build up and failure'
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07-09-2018, 06:46 PM
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#13
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Montana Fan
Join Date: Feb 2015
Location: Ferndale
Posts: 273
M.O.C. #16033
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I had very little mileage on Towmax tires but after reading all these tire threads changed to Saliun. Keystone said my 2014 had 110 psi rims. Long story short could not find any psi stamped anywhere on the rim. Still put the Saliun on and will run them at 80 psi. One thing of interest. I checked the tires all the time and they had maybe 10K on them. Les Schwab said I had a bubble on one of them and it was only time before a major problem. I never noticed a bubble and climbed under the trailer all the time to check. Thanks to all for the continue education.
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07-10-2018, 04:52 PM
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#14
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Established Member
Join Date: Jul 2018
Location: Granbury
Posts: 27
M.O.C. #22150
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Where is the best place to buy Salium tires in the Dallas area
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07-10-2018, 10:28 PM
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#15
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Montana Master
Join Date: May 2017
Location: new caney
Posts: 1,050
M.O.C. #19873
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I don't know about the Dallas area but you can order them from simpletire.com and have free shipping and no sales tax. It takes about 3 days to receive them and you can take them to just about any tire shop for install. If you watch the simple tire web page you will probably find them for 10% off pretty shortly. I doubt anyone will beat simple tire.
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07-10-2018, 11:22 PM
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#16
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Montana Master
Join Date: May 2017
Location: new caney
Posts: 1,050
M.O.C. #19873
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Quote:
Originally Posted by Mike117
I had very little mileage on Towmax tires but after reading all these tire threads changed to Saliun. Keystone said my 2014 had 110 psi rims. Long story short could not find any psi stamped anywhere on the rim. Still put the Saliun on and will run them at 80 psi. One thing of interest. I checked the tires all the time and they had maybe 10K on them. Les Schwab said I had a bubble on one of them and it was only time before a major problem. I never noticed a bubble and climbed under the trailer all the time to check. Thanks to all for the continue education.
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I have an 2014 and my wheels are rated at 3750# which i believe all 2014 wheels are rated at 3750#.Inflate to 110psi to get the maximum benefit and if not the 3750# wheel then you need to use the Sailun chart for the maximum pressure. As Carl stated you can run 80psi on Sailuns if that is all your wheels will handle. I bought a set of aluminum modular wheels at Star Craft Distribution that are rated at 3960# each for 99.00 each plus shipping after breaking 2 of the factory wheels. I bought the size 16x7 8x6.50HD. These wheels i installed the Sailun 235x85x16 tires.
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07-11-2018, 02:50 PM
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#17
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Established Member
Join Date: Jul 2018
Location: Granbury
Posts: 27
M.O.C. #22150
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Thanks. On my 2015 36rl I have about 40 K on my Goodyear s. Thinking about buying some soon. No problems
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07-11-2018, 04:03 PM
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#18
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Montana Master
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
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Quote:
Originally Posted by Garybricker
Thanks. On my 2015 36rl I have about 40 K on my Goodyear s. Thinking about buying some soon. No problems
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We had 40K perhaps a bit more on our Goodyear G614s. They had legal thread depth looked good but were 5 years old on a 2013 3402.
Replaced them. Safety first.
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07-11-2018, 04:13 PM
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#19
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Established Member
Join Date: Jan 2018
Location: Amherst
Posts: 40
M.O.C. #21043
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I have had Sailuns on mine for 2 years, run 110 psi tires have worn well lot of tread left. About 8,000 mi on them and they still look good. I keep them covered when not traveling. fuel
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07-15-2018, 02:30 PM
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#20
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Established Member
Join Date: Mar 2016
Location: Yuma
Posts: 12
M.O.C. #18339
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No suggestion... getting ready to get new tires too and would love to hear recommendations!
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