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Old 01-18-2019, 01:02 PM   #21
Tireman9
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Originally Posted by On The Road Again View Post
I replaced the Trailer King tires a couple of years ago with the Sailun ST235/80R16 and have been very pleased with them. I will buy them again when the time comes.

Were the Sailun LR E, F or G?
What inflation do you run?
What is your GAWR and your scale tire loading?
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Old 01-18-2019, 01:45 PM   #22
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Originally Posted by Tireman9 View Post
Were the Sailun LR E, F or G?
What inflation do you run?
What is your GAWR and your scale tire loading?
G.

100 psi. The Sailun chart shows a tire load limit of 3860 @ 100.

7K x 2 and last time across the scale it was 12,720 lbs. If my math is correct that averages 3180 per tire from 3860 leaves me with a 680 pound cushion.
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Old 01-18-2019, 08:30 PM   #23
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Originally Posted by On The Road Again View Post
G.

100 psi. The Sailun chart shows a tire load limit of 3860 @ 100.

Actually, for the RV trailer, the correct tire inflation pressures come from the trailer manufacturer.


The minimum, by regulation, is for the tires to provide an inflation pressure equal to the load capacity the OE tires provided.

The new minimum would be for the tires to provide a load capacity 10% above the vehicle certified GAWRs or what the trailer manufacturer recommended, if above the 10%. Your 3860 is just a few lbs above that 10% axle recommendation.
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Old 01-18-2019, 09:09 PM   #24
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ONYX All Steel 14 Ply
DT345/85R16 G/14 BW
Nitrogen filled
Weight capacity: 5280 @ 110 p.s.i.
Speed Rating: 82 mph
Made in: China
Shandong Hengfeng Rubber & Plastic Co., Ltd

Yes they are maid in China but you will likely find all tires large enough for your unit are made there. These are not China bombs. I love them and the cost is really reasonable.

Those are awesome Specs. Going to look them up! Thanks!
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Old 01-19-2019, 11:55 AM   #25
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Those are awesome Specs. Going to look them up! Thanks!
Originally Posted by mecapeman View Post
ONYX All Steel 14 Ply
DT345/85R16 G/14 BW

Looks like a typo on size. If not, it would not fit under very many trailers.

What I did notice trying to find it was that ONYX makes and 15" all steel tire that some might be interested in.

ONYX ALL STEEL ST RADIAL
ST225/75R-15
Load Range: F (12 Ply)

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Old 01-19-2019, 08:15 PM   #26
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Originally Posted by mecapeman View Post
ONYX All Steel 14 Ply
DT345/85R16 G/14 BW

Looks like a typo on size. If not, it would not fit under very many trailers.

What I did notice trying to find it was that ONYX makes and 15" all steel tire that some might be interested in.

ONYX ALL STEEL ST RADIAL
ST225/75R-15
Load Range: F (12 Ply)


The first one of these I saw was the Tow Master about 6-8 months ago. I posted somewhere in tires-tires-tires. Once a China tire builder starts something the others are close behind. I wonder if GY will convert their G614 to a steel ST? Their polyester 255 is 33" tall. Probably a little too tall for trailers not speced for 33". Some Keystone models have problems with the 31.7"tall tires.

http://www.greenball.com/brands/tow-...onstruction-st
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Old 01-19-2019, 08:21 PM   #27
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I wonder if GY will convert their G614 to a steel ST?
Probably no need to do that. The G614 seems to be at it's limit regarding load carrying ability at 3750 lbs. Those that have pushed it close to that number are the one's that experienced failures.

GY's solution for a higher rated tire for a trailer is their G114 17.5 offering.
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Old 01-19-2019, 10:49 PM   #28
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Probably no need to do that. The G614 seems to be at it's limit regarding load carrying ability at 3750 lbs. Those that have pushed it close to that number are the one's that experienced failures.

GY's solution for a higher rated tire for a trailer is their G114 17.5 offering.

Are you trying to surprise me? Goodyear has invented a new ST Endurance tire size and stuck with the polyester design. it's the ST255/85R16 LRE rated at 4080# @ 80 PSI.


Before Sailun decided to build the steel ST235/85R16 LRG, they had built the GY knock-off LT235/85R16 LRG, same specs as the G614.


Westlake builds the ST235/85R16 LRG polyester and rates them at 4080# @ 110 PSI.

Look at my previous post. Greenball has a serious error in that reference. They have 129 "single" load index for two different designated size tires. They list one as 4400# and the other a 4080#. It's one of the main reasons I always want sidewall verification. If they actually have the 129 on that 4400# tire sidewall, sooner or later they will have to recall every one of them because of maximum load capacity error.
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Old 01-21-2019, 08:11 PM   #29
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Are you trying to surprise me? Goodyear has invented a new ST Endurance tire size and stuck with the polyester design. it's the ST255/85R16 LRE rated at 4080# @ 80 PSI.


Before Sailun decided to build the steel ST235/85R16 LRG, they had built the GY knock-off LT235/85R16 LRG, same specs as the G614.


Westlake builds the ST235/85R16 LRG polyester and rates them at 4080# @ 110 PSI.

Look at my previous post. Greenball has a serious error in that reference. They have 129 "single" load index for two different designated size tires. They list one as 4400# and the other a 4080#. It's one of the main reasons I always want sidewall verification. If they actually have the 129 on that 4400# tire sidewall, sooner or later they will have to recall every one of them because of maximum load capacity error.

I have seen similar issues with stated load capacity and Load Index numbers. A picture of the loads and tire DOT sent to NHTSA should get action unless the tire mfg has petitioned NHTSA for an exception.
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