Community Forums

JIMNLIN · 06-15-2015, 06:36 PM

The Sailun S637 235/85-16 G at 3750 lb capacity/110 psi are one of the more popular tires for heavy trailers and 16" wheels on RV and especially haulers forums I frequent.
I sure wouldn't put any 16" E ST brand tire on a trailer that size.

justafordguy · 06-15-2015, 07:00 PM

I put the sailun s637s on my new Gateway, they are awesome tires for the money.

cb1000rider · 06-15-2015, 07:23 PM

So the wheels say, Max load:
8/3750LBS11psi
6/3200LBS110psi

I assume that's 3750 at 110 psi for 8-lug rims and 3200 at 110 psi for 6-lug. Mine are 8-lug. Metal valve stems.

cb1000rider · 06-15-2015, 10:50 PM

8/3750LBS11psi
6/3200LBS110psi

The fact that Power King and Trailer King are made by the same company in China, have similar tread patterns... I could be throwing money away here, but it seems like too much of a coincidence. It might be an attempt to re-brand a known bad tire.

As my rims are rated for 110 psi, I think I'm just going to buy one of the following:
* A set of Sailun S637 - 4 of them will cost me $667.35 (3750 lb rating)
* Taskmaster Provider ST Radial F835 - $560 (4080 lb rating / 14 ply)

taken · 06-16-2015, 05:47 AM

Of the two, I'd go with the Sailun. Very good tires from what I see every time someone posts on them. People love to post bad news and I just never see any about these...

04266832 · 06-16-2015, 06:24 AM

Good thread and I've had the same question. On my last travel trailer, the Chinese made tires lasted almost four years with no issues.

I just purchased a 2016 Keystone with the same tires as mentioned above. I was concerned because while researching the trailer, it was mentioned over and over that folks had blow outs within 30 days of picking up the trailer -- but never mentioned the tire brand so I can only assume it's the same.

In addition, when picking up my new Keystone it didn't have a spare tire. I asked why they had to replace it and the answer was that the hauler had a blow out on the way to delivering it to the dealership.

I was hoping to get at least a year or two life out of these but it sounds like I'll be replacing much sooner, as well.

cb1000rider · 06-16-2015, 07:18 AM

I'll add the metal valve stems while I'm in there. Looks like I have metal stems now, only on a rubber base and they're press-in, not clamp on...

I assume I need .453" dia.

cb1000rider · 06-16-2015, 07:21 AM

FYI, I asked TBC what the difference was between Trailer King and Power King, this is what they said:
"We are in receipt of your inquiry. We are a wholesale tire distributor of a variety of brands of tires, including Trailer King, but we are not a tire manufacturer. Both Trailer King and Towmax tires are offered under our Private Label, Power King. We invite you to visit the dedicated webpage we have created for this brand, www.trailerkingtires.com, for further information on these tires."

andy29847 · 06-16-2015, 07:31 AM

Things I think I have learned....

Air carries the weight.

Tires hold the air.

ST tires have thinner sidewalls and less tread depth than a like sized LT tire.

LT tires are trailer rated.

An ST tire rated for 3500 pounds is much lighter than an LT tire rated for 3500 pounds because the rating for ST tires do not account for driving forces.

If you are gong to run air pressure higher than 80 pounds, you need bolt-on metal valve stems.

The stiffer sidewalls of an LT tire can stress the suspension and frame of your trailer in tight turns.

A tire pressure monitor system is worth the money.

RV trailer builders provide the warranty on just the parts of your trailer that they made. The components (appliances, slides, doors, tires, etc.) are warrantied by the component manufacturer.

If you have a failure, take pictures, write letters, make phone calls. I have found that the Customer Service Departments at Dynamic Tire and Lippert INC are open minded and stand behind their products.

cb1000rider · 06-16-2015, 09:55 AM

Pressing TBC more, I still get the same answer, which is "we're a private label" and "look at the specs". The specs that are available from TBC, I've added below. The tires appear to be almost identical, with very minor (fractional) dimensioning differences.

My best guess is that these are essentially a re-brand of the same tire. I don't know that for sure, but it sure looks like that might be the case:

justafordguy · 06-16-2015, 10:27 AM

Let the air out of one of your Trailer King tires and see how thin and squishy the side walls are. This will tell you if they are the same build quality at the TowMax. They are so soft in the sidewalls no wonder they blow out so often. The Sailun tires I replaced my TowMax with are super stiff/thick on the sidewalls and the tire alone weights more than the TowMax and rim combined.

cb1000rider · 06-16-2015, 11:15 AM

I haven't let the air out, but I can tell you that the tires and rims are pretty light.... :-)

cb1000rider · 06-16-2015, 11:34 AM

Thanks, everyone. I ordered 4 Sailun S637's from simpletire.com.
Shipping was about $40 less shipped to NTB direct. Total cost: $630.28 + install.

Ray,IN · 06-16-2015, 06:04 PM

Quote:

Originally Posted by cb1000rider

LRH?

I'll need to check if my wheels will sustain 110psi. Apparently there is a sale on load range G, Taskmaster tire, @ $140
http://www.discounttiredirect.com/direct/tires/taskmaster/product/submitProductSize.do?pc=12062&typ=Trailer&tmn=Prov ider+ST+Radial+F835+Trailer

And indications of Sailun S637 - about the same price for all steel.
Sailun S637 Tires at SimpleTire.com

When I tired of failing LR "E" tires, I bought a set of Sailun 235/85R16 LR"G" tires and never had another tire problem on our 5er. Sailun makes truck tires, and are fairly common in use, especially in Canada. This is an all-position truck tire also approved for trailer use on low-boys, etc., and has a speed rating of 75 MPH.