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Hendrickson
11-14-2018, 10:49 AM
I just purchased a 2018 3810MS and plan to add Sailun S637 to it. Does anyone have the size and specification available? Thanks in advance :)

PNW Fireguy
11-14-2018, 10:59 AM
Their is a spec chart available on their website.

ChuckS
11-14-2018, 02:22 PM
Didn’t your 3810 come with Provider G rated 14 ply tires already. If so it’s a good tire..

Sailun S637 14 Ply G rated is excellent as well and will work just fine for your rig

CalandLinda
11-14-2018, 02:48 PM
I just purchased a 2018 3810MS and plan to add Sailun S637 to it. Does anyone have the size and specification available? Thanks in advance :)

https://www.sailuntire.ca/PLT/S637st.html

dhuhn
11-14-2018, 04:34 PM
Check your tires 1st keystone is putting the Sailuns on the new rigs.

BuilderBob
11-14-2018, 05:00 PM
Most of the new 5ers come with Sailuns on them! If it didn't then you want Sailuns S637 they are either 235\85R16 or 235\80R16 Load range G 14PLY

vacationer
11-15-2018, 08:41 AM
Take the sailuns great tire, my keystone came with rainers, changing them in the spring

CalandLinda
11-15-2018, 03:01 PM
Take the sailuns great tire, my keystone came with rainers, changing them in the spring

If your Rainer tires are the GL2851 steel cased tires, their design is the same as the all steel Sailun tires. Worth checking, could give you more confidence in them.

http://www.trailertiresandwheels.com/Rainier-GL285T-ST235/80R16-LRG-All-Steel-Radial-Trailer-Tire

vacationer
11-16-2018, 05:47 AM
Will have to look into that when I get the trailer back. That is kind of good news. never new that. thanks

vacationer
11-16-2018, 05:51 AM
Ya just looked at the specs my tires are only good to 95psi ,the gl2851 are 110psi

CalandLinda
11-16-2018, 10:18 PM
Ya just looked at the specs my tires are only good to 95psi ,the gl2851 are 110psi

That's probably their polyester LRF tire with a load capacity of 3960# @ 95 PSI.

mazboy
11-17-2018, 05:41 AM
I'm curious, what tires do you actually have on your rig?



And, if you go to 'G' tires (110psi) make sure your wheels are rated for the 'G' tires.

TAKPAK
11-21-2018, 02:02 PM
I just purchased a 2018 3810MS and plan to add Sailun S637 to it. Does anyone have the size and specification available? Thanks in advance :)

Hendrickson, are you sure they aren't Sailuns now? We have a 2017 model 3810 which came with the Sailuns, so we're good! I wouldn't have thought they'd change to a different tire the very next year????

Wanderingwattson
11-21-2018, 05:14 PM
I recently had a email conversation with the rep of sailun. He gave me the load chart.

SPECIAL ST METRIC TIRES FOR TRAILERS IN HIGHWAY SERVICE
TIRE AND RIM ASSOCIATION STANDARD
TIRE SIZE DESIGNATION
TIRE LOAD LIMITS (lbs.) AT VARIOUS COLD INFLATION PRESSURES (psi)
USAGE 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110
80 SERIES
ST235/80R16 DUAL 1510 1690 1820 (B) 101 2000 2140 2270 (C) 109 2400 2510 2600 (D) 114 2760 2870 3000 (E) 119 3085 3195 3305 (F) 122 3415 3525 3640 (G) 125
SINGLE 1720 1920 2090 (B) 106 2270 2430 2600 (C) 114 2730 2870 3000 (D) 119 3140 3260 3420 (E) 123 3525 3640 3750 (F) 126 3860 3970 4080 (G) 129
85 SERIES
ST235/85R16 DUAL 1610 1800 1930 (B) 103 2120 2270 2400 (C) 111 2560 2690 2830 (D) 117 2950 3060 3200 (E) 121 3305 3415 3525 (F) 124 3640 3750 3860 (G) 127
SINGLE 1830 2040 2200 (B) 108 2400 2580 2760 (C) 116 2910 3060 3200 (D) 121 3360 3480 3640 (E) 125 3750 3860 3970 (F) 128 4080 4190 4400 (G)

bou0146
11-22-2018, 03:08 PM
I just purchased a 2018 3810MS and plan to add Sailun S637 to it. Does anyone have the size and specification available? Thanks in advance :)

I have a 2018 3810MS Legacy. It came with 14 ply Sailuns. I balanced them immediately and am very happy with them.

powerhaulic
12-09-2018, 06:37 AM
We have 2018 3811ms it came with Sailuns

Creeker
12-09-2018, 08:50 AM
Our 19 came with Rainiers 12 PR F rated 95psi

They came with a 5 year limited warranty. (Very limited when reading
the fine print). I've never heard of them and have little faith as I'm not a fan
of previous china bombs.

Keep reading good things about the Sailuns and will give them a look after next season. Certainly wish there were more North American made options.

mhs4771
12-09-2018, 08:58 AM
Good friends and travel companions went through all 5 Rainiers on a Jayco during a Caravan of the Canadian Maritime and ended up buying new tires when we returned to Maine.

Creeker
12-09-2018, 11:51 AM
Good friends and travel companions went through all 5 Rainiers on a Jayco during a Caravan of the Canadian Maritime and ended up buying new tires when we returned to Maine.


About what I expected. I'm not going to let these tires age much for sure.

I sure wish The Firestone Transforce HT was manufactured in an F or G rating. I've had excellent results from them over the last 15 years or so.

CalandLinda
12-09-2018, 02:07 PM
About what I expected. I'm not going to let these tires age much for sure.

I sure wish The Firestone Transforce HT was manufactured in an F or G rating. I've had excellent results from them over the last 15 years or so.



Just a few short years ago (2016) your trailer would have been equipped with tires having a load capacity of 3420#. Today, with strong recommendations from RVIA you have 960# of load capacity reserves per wheel position. IMO, no matter the brand or plant code, they will have to be extremely mismanaged not to last 3 years.

Bill M
01-12-2019, 03:34 PM
Everything I have read about Sailun tires have been great.

CalandLinda
01-13-2019, 09:55 AM
Sailun has provided a nice load inflation chart. Note some of the interesting new ST sizes on it.

http://fifthwheelst.com/documents/Copy%20of%20Load%20and%20Inflation%20All%20ST-Modified.pdf