Trailer King RST

[ingram]

My new 5th wheel came with a very different looking set of Trailer Kings on it than the ones I immediately replaced on my last TT. These are called Trailer King RST, instead of Trailer King ST. I looked them up and they are 10 ply, E rated, and the website claims, has a 5 year warranty. They still look cheap to me, but has anyone else got these? Same old, same old, junk?

[ChuckS]

If you have 7K axles.... look at number of lug nuts... if you have 8 most likely 7K axles I would upgrade the tires to a 14 ply G rated.

I had TK tires for 2000 miles on my Alpine and dumped them for 14 ply tires

Get behind one of your wheels with a light and see what the psi rating is stamped usually on backside of wheel somewhere.

Sailun S637 is a great tire at a good price. GY G614s are nice too but cost a lot
More.

I’d also ... if you upgrade tires be sure and upgrade the valve stems to all metal

You’ll get a variety of opinions but you google TK tire blow outs. Or search here for the many many posts.

They will have to have a few years of trouble free service before I’d ever consider Trailer King. Even though they claim RST they have no track record

Sailun or Maxxis does. And of course GY.

[Pull Toy]

Wantta' see CR*P at work? CHINA BOMBS RULE!!!

Pull out your spare, totally deflate it and take the valve stem out. Now push down on the tread, and then in on the sidewall, and tell me it's an "Honest" 10 ply? The catch is they claim 10 ply "RATED"... not 10 "PLIES".

My wife's passenger tires are stiffer, as a matter of fact so are my mountain bike tires. LOL

Bet you the dealer doesn't want them for trade ins? The 500 to 600 you spend on reliable tires, is cheaper than the $3000 plus on blow out repairs!

Good Luck,

[sourdough]

Wantta' see CR*P at work? CHINA BOMBS RULE!!!

Pull out your spare, totally deflate it and take the valve stem out. Now push down on the tread, and then in on the sidewall, and tell me it's an "Honest" 10 ply? The catch is they claim 10 ply "RATED"... not 10 "PLIES".

My wife's passenger tires are stiffer, as a matter of fact so are my mountain bike tires. LOL

Bet you the dealer doesn't want them for trade ins? The 500 to 600 you spend on reliable tires, is cheaper than the $3000 plus on blow out repairs!

Good Luck,


^^^^This is what was surprising to me. When mine blew out and I was looking at other tires I was AMAZED at how "soft" the TK tires were and they would just literally squish when off the wheel. The others were much stronger.

[rhagfo]

Wantta' see CR*P at work? CHINA BOMBS RULE!!!

Pull out your spare, totally deflate it and take the valve stem out. Now push down on the tread, and then in on the sidewall, and tell me it's an "Honest" 10 ply? The catch is they claim 10 ply "RATED"... not 10 "PLIES".

My wife's passenger tires are stiffer, as a matter of fact so are my mountain bike tires. LOL

Bet you the dealer doesn't want them for trade ins? The 500 to 600 you spend on reliable tires, is cheaper than the $3000 plus on blow out repairs!

Good Luck,

^^^^This is what was surprising to me. When mine blew out and I was looking at other tires I was AMAZED at how "soft" the TK tires were and they would just literally squish when off the wheel. The others were much stronger.

Well that is why I run LT tires on our 12,360# GVWR 5er MUCH stronger tire and sidewall.

This is the sidewall of our LT tire!

https://i.imgur.com/A6L1SA6.jpg

This is the sidewall of a ST tire!

https://i.imgur.com/6sPPp2H.jpg

[sourdough]

Well that is why I run LT tires on our 12,360# GVWR 5er MUCH stronger tire and sidewall.

This is the sidewall of our LT tire!

https://i.imgur.com/A6L1SA6.jpg

This is the sidewall of a ST tire!

https://i.imgur.com/6sPPp2H.jpg

To each his own.;)

[rhagfo]

Wantta' see CR*P at work? CHINA BOMBS RULE!!!

Pull out your spare, totally deflate it and take the valve stem out. Now push down on the tread, and then in on the sidewall, and tell me it's an "Honest" 10 ply? The catch is they claim 10 ply "RATED"... not 10 "PLIES".

My wife's passenger tires are stiffer, as a matter of fact so are my mountain bike tires. LOL

Bet you the dealer doesn't want them for trade ins? The 500 to 600 you spend on reliable tires, is cheaper than the $3000 plus on blow out repairs!

Good Luck,

It has been that way for as long as I can remember ply rating not true number of plies. It is the same for passenger and LT tire also.
That is why I run lower weight rated, but higher speed rated LT on our 5er, stronger sidewalls better quality tire. I KNOW my LT’s will carry all 3,042# at a speed of 106 mph, NOT going to tow that fast!!!
So if rated to carry 3,042# @ 106 mph, I have a very nice reserve at 65 to 70 mph in carrying capacity!

[sourdough]

It has been that way for as long as I can remember ply rating not true number of plies. It is the same for passenger and LT tire also.
That is why I run lower weight rated, but higher speed rated LT on our 5er, stronger sidewalls better quality tire. I KNOW my LT’s will carry all 3,042# at a speed of 106 mph, NOT going to tow that fast!!!
So if rated to carry 3,042# @ 106 mph, I have a very nice reserve at 65 to 70 mph in carrying capacity!


I think that's the reason LTs are so popular on RVs and recommended for them. Just think about it; rating of 3042 at 106 mph (and you KNOW they work at that speed so you must have tried it?), and, if you decrease your speed to 65-70 you now have acquired a nice reserve! So, instead of 106 you drive 70 with a 12,500? trailer = a 34% reduction in max speed which = 34% increase in max load capacity of the tire - I guess???? Now it's 4076 lbs.; that IS good and a nice margin. I've been searching for a load chart that tells me that's how it works but haven't found it......yet :confused: Like I said, to each his own:)

[busterbrown]

Load carrying capacity and any potential reserve capacity are not based on a tire's speed ratings. Sailun s637 and Goodyear g614s are heavy trailer tires speed rated for only 75 mph. Not clearly 106 mph but they have a great reputation of supporting the load.

[CWtheMan]

It has been that way for as long as I can remember ply rating not true number of plies. It is the same for passenger and LT tire also.
That is why I run lower weight rated, but higher speed rated LT on our 5er, stronger sidewalls better quality tire. I KNOW my LT’s will carry all 3,042# at a speed of 106 mph, NOT going to tow that fast!!!
So if rated to carry 3,042# @ 106 mph, I have a very nice reserve at 65 to 70 mph in carrying capacity!

Doesn't your certification label call for LT tires? Just about all 2005 Keystone trailers in that weight class had LT tires.

[CWtheMan]

Load carrying capacity and any potential reserve capacity are not based on a tire's speed ratings. Sailun s637 and Goodyear g614s are heavy trailer tires speed rated for only 75 mph. Not clearly 106 mph but they have a great reputation of supporting the load.

All tires have a maximum load capacity molded on their sidewalls. Now days just about all ST tires have speed letters above "K".

The relationship with a tire's speed rating and load rating goes sort of like this. The tire will support it's full load capacity up to it's speed rating. Thereafter, it starts degrading rapidly cutting months and even years off its potential life expectancy. (Depending on how close it is to its max load capacity).

[CWtheMan]

My new 5th wheel came with a very different looking set of Trailer Kings on it than the ones I immediately replaced on my last TT. These are called Trailer King RST, instead of Trailer King ST. I looked them up and they are 10 ply, E rated, and the website claims, has a 5 year warranty. They still look cheap to me, but has anyone else got these? Same old, same old, junk?

IMO, a lot of the China manufacturers will add a little something to their brands just to make us think they've upgraded the brand. In this case they've added a couple of new sizes, some with higher load ranges and all sizes carry a "M" speed rating.

The first trailer tires I saw with RST on their sidewalls were the GY G614s. Their RST acronym means Regional Service Trailer.

http://trailerkingtires.com/tires/Landing.aspx?application=trailerking-product-line

[ingram]

I really liked the Goodyear Endurance on my little TT. Better safe than sorry. I will probably swap to those when we get back from FL.

[rhagfo]

Doesn't your certification label call for LT tires? Just about all 2005 Keystone trailers in that weight class had LT tires.

No cert label on 2005, but build sheet I got from Keystone state it was shipped with LT 235/85-16E’s.

[Laredo Tugger]

I'm trying to figure out what (brand) of tire I have on my 2017 Laredo 350FB that I bought used. The only name on them is "Provider" ST 235/80R16 Radial Load Range E Made in China. There is no speed rating anywhere to be found on the tires. Anybody know? They are in great shape and I keep them covered and off the dirt.
Should these be replaced or are they a "quality" china bomb?
RMc

[JRTJH]

It's made by (well, marketed by) Taskmaster brand tires.

Specs:
•Fits 16" x 6" rims
•Tire size: ST235/80R16◦Section width: 9.25"
◦Outer diameter (when inflated): 30.79"
•Capacity:◦Load range: E
◦Ply rating: 10
◦Maximum load:◾Single tire: 3,520 lbs at 80 psi
◾Dual tires: 3,000 lbs at 80 psi
•Tread depth: 11/32"
•Max speed: 81 mph (speed rating M)
•2-Year limited warranty

https://www.etrailer.com/Tires-and-Wheels/Taskmaster/TTWTRTM2358016E.html

[Laredo Tugger]

Well there you go!
I was just on the etrailer site ordering some stuff but did not think of chasing down that tire info like you did.
Thank you very much. Most helpful.
RMc

[CWtheMan]

No cert label on 2005, but build sheet I got from Keystone state it was shipped with LT 235/85-16E’s.

They used cheap decal labels back then. Our 2003 Everest had one and it wore off in about 6 years. I requested a new one from Keystone and they sent me a metal one that bonded right over the old one. Much nicer and still legible.

[johnlewis]

ST tires are supposed to be used on travel trailers and 5th wheels. Check out https://rvingwithmarkpolk.com/2012/11/08/trailer-towing-st-tires-vs-lt-tires/
When we bought our 2006 Montana a couple of years ago, the tires needed replacing, because the tires on the unit were 6 years old. I started searching on line, and found Load Range G, ST tires at Discount Tire (the trailer was originally supplied with Load Range E). They are a Hartland brand, rated for 81 mph. After 2 years and 20,000 miles, they are doing well.
There are several other websites that outline why you should use ST tires, not LT tires on a TT or 5er.

[CaptnJohn]

Sailun S637 have the best rep and are on new Montana 5ers. The 235/80/16 rated at 4080# and the 235/85/16 are rated at 4400#at 110 psi. The company has a psi/weight chart down to 80 psi. Made in China by a Canadian company, not farmed out, in their factory. Best rep and best price....

[CWtheMan]

ST tires are supposed to be used on travel trailers and 5th wheels.

Actually that's the trailer manufacturer's call. They can use any DOT certified highway tire they deem an appropriate fitment. Only the vehicle manufacturer has that option.

It becomes a confusion factor when people see RV trailers of equal size and weight, from a different manufacturer or even the same manufacturer, having been fitted with tires with a size designated design other than ST. It's not an open door to use them. The vehicle federal certification determines the size designation tires to be used for each individual trailer.