Multiple Blow-outs

I fail to understand how anyone can stick up for an ST tire.....given their Proven History......of soon BEING.....history .:h

A LT tire by its design is a much more rugged and robust tire........and will give better performance......PERIOD.


An old tire of any type is asking for trouble also........heck you could have 3 inches of tread depth but the sidewalls age.......and crack and there you go...


We absolutely hate it when we have to throw away .... perfectly good tires on our firetrucks ......:E....because the tires are too old......rubber tires do not last forever.:W

Seattle Lion wrote:
"keep reading seriously wrong posts about trailer tires. One of the most common misstatements is that LT tires are better for trailers than ST's. Many ethical tire dealers won't install LT's on a trailer. The reason is that trailer tires are designed to stay in one place for long time periods without damage. LT's aren't. ST sidewalls are stiffer (one reason they get so hot is because they are thicker than LT's) to resist the scrubbing caused by the trailer being dragged around turns. "

I am not happy about the bad reputation of my Tow Max tires. We have a heavy fifth wheel (13,500 lbs loaded). My Tow Max E rated tires have a load rating of about 3,500 lbs. We have 7,000 lb axles. According to a CAT scale, we have 11,300 lbs on the trailer wheels. That means each tire is loaded to 2,825 lbs. This is well within the tire/axle ratings. Even so, this is a lot of weight. Goodyear makes the G614 trailer tire that has a very good reputation. To buy them, we need new wheels, since ours are 6" and the G614's require 6 1/2. That will have to wait until we can afford the $1,400 or so it will cost. "

Where did all that come from???
WOW, What an eye opening couple of paragraphs....NOT....talk about just opinion not based on hardly any facts.......

We've asked more than several times for these ST tire enthusiasts to do a test; I'm just going to throw out an example...may not be the best, but pick up an E rated ST tire, pick your medicine...then pick up a Michelin XPS RIB....comparing like tires, the RIB is MUCH heavier and sidewall MUCH thicker....Some of the information being tossed out about ST sidewall being able to take more and on and on is no where near fact and again, can be seen by doing the above test....

GY G614 may not be the best tire by no means in the G rated tire game, but they are made in Kansas:)

Maybe some of these other possible reasons for the OP's blowouts are correct, but the first thing I would check are the tire valve stems. The valve stems, especially if the tires have been on the trailer for a while sitting in the sun and weather, may crack and become brittle. You can have new valve stems put on your tires for a relatively small price.

I post my reply because I experienced this problem on my trailer when it was only 2 years old. I had just purchased my 5th wheel from the original owners who had kept it down in Florida for two seasons before bringing it back to Michigan to sell. The tires still had a lot of tread on them, but the weather had taken it's toll upon the valve stems. Always check those valve stems!

I keep reading about how much stiffer ST sidewalls are than LT tires, but in what direction? I can feel the sidewalls flex on the ST tires I removed from my toyhauler to replace with LT tires. When I compare them side by side, I cannot in any way, shape, or form reach the conclusion that the sidewalls on the ST tire are stiffer than the LT tires. I can sit on the LT tires and the sidewalls barely flex at all, but do the same and the ST tires noticeably flex and distort.

Actually to my way of thinking ST tires should flex more easily since the trailer tires crab in turns. Pretty much a moot point though since I'll never have ST tires on another trailer.

Seattle Lion wrote:
The reason is that trailer tires are designed to stay in one place for long time periods without damage. LT's aren't. ST sidewalls are stiffer (one reason they get so hot is because they are thicker than LT's) to resist the scrubbing caused by the trailer being dragged around turns.

I am not happy about the bad reputation of my Tow Max tires. We have a heavy fifth wheel (13,500 lbs loaded).

Could you please sight a source for your misinformation about ST tires. The aging of a tire is about the same for all tires that set rather than move. However if you start with a really cheap tire like a ST tire, then they are not going to do better than a higher quality tire. All the marketing stuff about ST tires is just plan that, marketing, without facts to back it up.

Regarding the sidewall, the stiffness of a ST generally falls between a P rated tire and a LT rated tire.

And yes you should be very worried about your Tow Max tires, as they have earned the reputation they have as Blow Max tires.

What some of you fail to realize that the trailer manufacturers pay next to nothing for these tires from the likes of Tredit and Tireco.

If ST tires were as good as you suggest, we would not be reading this thread or all the other ST tires failure threads and you would not note the bad reputation of Tow Max.

Remember Goodyear makes this statement about their Marathon ST tire.

"Specifically designed to make trailer towing easier, more stable and more economical"

This from the same company that makes the pricey G614 LRG trailer tire. They do not label their G614 as economical!

Given that most ST tires size for size are about the same price, with the exception of the Maxxis M8008ST, I think the bunch minus Maxxis can be lumped together as economical vs quality.

Chris

That side is either UNDERinflated or OVERloaded

Me Again wrote:
I got to thinking about a new spare tire! The current brand new XPS Rib has been hanging under the trailer for over 9 years and maybe 50K miles. Shame to throw out an unused tire, but it is time. Truck has a brand new LTX A&S that has been hanging there for 13 years and 113K miles. Same deal, I need to throw out a brand new tire. Wives, Buick Rainier is in the same boat, 10 year old Michelin under it also. Darn, that is three tires I need to purchase for insurance.

So I have a bit of a hard time understanding what kind of tires several of you are running that you need two spares vs one?

Chris

same here. 07 spare never used on the alpenlite, 04 spare never used on the chev and 07 tires on the GMC. I am the same guy that tells people when they have old tires, please help me!!!! 2010 tires on the alpenlite that will not be on after the winter coming up. Time passes fast.

chevman :o

wandering1 wrote:
RV Tire Problems


Tire Pressure
Check your tire pressure when the RV has not been driven for 3 - 4 hours. That is when the tire is "cold". Forget ambient temp, 80psi at 10 degrees F is the same as 80psi at 100 degrees F. If you over inflate or under inflate the tires this can cause the tires to run hotter than normal which can damage the tires and cause tire failure. Stick with the PSI on the side of the tires. No need to turn this into rocket science. Check with the tire manufacturers if you need an education on tire inflation. Tire pressure does rise as the tire temp rises after driving down the road just like it is supposed to which is why you are supposed to check the pressure when the tire is “cold”.

Here's a bit of misinformation. 80psi at 70 deg is not the same as 80psi at 100 deg F. Really? Gasses expand when heated. Tire pressure is standardized at 70deg F. 80 psi at 70 goes to about 74psi at 50 deg F and 95 psi at 90 deg F. This post is giving the same misinformation it complains about.

In my opinion, the best protection is a tire pressure monitoring system. We have a TST 507. It delivers accurate pressure and temperature continuously. We monitor it while we drive. It isn't unusual to see the pressure go from 80psi at 70 deg F to 100psi at 98 deg while we drive on a fairly cool day. According to the manufacturer information (see Goodyear's towing info), always measure and inflate when the tires are cool (as close to 70 deg F as you can get). Never let air out of tires when they are hot. They are designed to handle the higher pressure when warm or hot.

In terms of temperature, according to TST, the only reliable research into heat causing tire failure was done by Michelin and they suggest that below 147 deg F the tires are fine. The TST monitor is preset to sound an alarm when the tires get above the safe temperature.

I keep reading seriously wrong posts about trailer tires. One of the most common misstatements is that LT tires are better for trailers than ST's. Many ethical tire dealers won't install LT's on a trailer. The reason is that trailer tires are designed to stay in one place for long time periods without damage. LT's aren't. ST sidewalls are stiffer (one reason they get so hot is because they are thicker than LT's) to resist the scrubbing caused by the trailer being dragged around turns.

I am not happy about the bad reputation of my Tow Max tires. We have a heavy fifth wheel (13,500 lbs loaded). My Tow Max E rated tires have a load rating of about 3,500 lbs. We have 7,000 lb axles. According to a CAT scale, we have 11,300 lbs on the trailer wheels. That means each tire is loaded to 2,825 lbs. This is well within the tire/axle ratings. Even so, this is a lot of weight. Goodyear makes the G614 trailer tire that has a very good reputation. To buy them, we need new wheels, since ours are 6" and the G614's require 6 1/2. That will have to wait until we can afford the $1,400 or so it will cost.

I got to thinking about a new spare tire! The current brand new XPS Rib has been hanging under the trailer for over 9 years and maybe 50K miles. Shame to throw out an unused tire, but it is time. Truck has a brand new LTX A&S that has been hanging there for 13 years and 113K miles. Same deal, I need to throw out a brand new tire. Wives, Buick Rainier is in the same boat, 10 year old Michelin under it also. Darn, that is three tires I need to purchase for insurance.

So I have a bit of a hard time understanding what kind of tires several of you are running that you need two spares vs one?

Chris

2oldman wrote:
... Nobody carries two spares. ...

Really?

I do...

Three actually...one for the truck and two for the trailer.