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Old 07-18-2016, 05:04 AM   #41
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Originally Posted by dbarr View Post
So what is causing this type of damage? At first I thought maybe I hit something but to get 2 with the same identical damage I think not. There aren't any obstructions above the tire and more than enough room to the floor above. No flat spot across the width so I'm pretty sure I didn't lock the brakes.

The first time was last August and about 12000 miles.

The second one was last week and about 17000 miles.

Neither lost any pressure and were caught during tire checks every 2 hours.

Could this be the start of throwing the tread? They are Trail Express manufacture 5212 so they would've been changed out this year anyway.
Trail Express tires are pure garbage got those on mine when new, had a blowout no damage. Lions head wanted me to send them back the tire, ya right lion head and keep there garbage. No TRAIL EXPRESS DEALERS. Had 6000 miles on them but they were only a year old. Didn't know or have a TST system or know about them either now I have my 3rd set of tires on which Maxxis 8008 "D" rated, second set where GY Marathons with chuncks coming out on one showing the belt like yours and one with the belt just broke and ballooned the tire. Had TST on them when the belt punctured a small whole in the tire and was able to tell and pull off before damage to the trailer. Now I'm on Maxxis. Like them so far I have like 2000 miles on them since I put them on....
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Old 07-18-2016, 10:54 AM   #42
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Originally Posted by Tireman9 View Post

What is the DOT serial of the tires?

Don't know. Got my use out them and figured they were at the end of life at 17000 miles. No complaints.
I posted pics so that others could see how missing damage as this in regular tire checks can lead to failure. I suspect when these let loose a tpms would be useless.


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Originally Posted by Witch Doctor View Post
Trail Express tires are pure garbage got those on mine when new, had a blowout no damage. Lions head wanted me to send them back the tire, ya right lion head and keep there garbage. No TRAIL EXPRESS DEALERS. Had 6000 miles on them but they were only a year old. Didn't know or have a TST system or know about them either now I have my 3rd set of tires on which Maxxis 8008 "D" rated, second set where GY Marathons with chuncks coming out on one showing the belt like yours and one with the belt just broke and ballooned the tire. Had TST on them when the belt punctured a small whole in the tire and was able to tell and pull off before damage to the trailer. Now I'm on Maxxis. Like them so far I have like 2000 miles on them since I put them on....


Depends on what you're pulling. If I were expecting them to hold close to 6000lbs they would've been gone as well.

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Originally Posted by Airdale View Post
Looks like it's (sometimes) hitting something in the wheelwell.

Nothing but flat flooring above with plenty of space.
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Old 07-18-2016, 11:11 AM   #43
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Old age and Low pressure are the two main issues, plus just poor quality to start with. with tires you get what you pay for
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Old 07-18-2016, 12:45 PM   #44
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Originally Posted by dbarr View Post

Nothing but flat flooring above with plenty of space.
I know. But, when making sharp turns parking in tight sites the axles will re- position from side to side which can cause them to hit suspension parts.

In a closer look at your picture the damaged area seems to be from something sharp. It appears to have started on the RH side as it's smoother there than on the LH side.

http://www.irv2.com/photopost/showfull.php?photo=30619
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Old 07-18-2016, 01:41 PM   #45
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Old age and Low pressure are the two main issues, plus just poor quality to start with. with tires you get what you pay for
Trail Express are just cheap garbage FR puts on, mine where C rated with 50 lbs. Max PSI. They were able to carry the 9200 Gvw. But only had like 140 lb. Cushion per tire. But they where legal and certified. Went to "D" rated for a 500 lb weight cushion. Anyone will only get the bear min. That they are required by law period. If you ask for a upgrade they say they don't have one. Why because they would have to admit they are not putting the best tire on, that is per the Manager of Rockwood division. On a tour factory, at least he was honest.

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Old 07-18-2016, 05:16 PM   #46
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Originally Posted by Airdale View Post
I know. But, when making sharp turns parking in tight sites the axles will re- position from side to side which can cause them to hit suspension parts.



In a closer look at your picture the damaged area seems to be from something sharp. It appears to have started on the RH side as it's smoother there than on the LH side.



http://www.irv2.com/photopost/showfull.php?photo=30619

There is nothing to hit. Also, if you could see it in person you would also see that the tread is deformed 8" to the left of the cords in picture 2. A depression nearly 1/4" deep in the center of the rib. The cords weren't damaged on either like I would expect to see if something carved out the rubber deep enough to expose the cord and slightly down each side of it.

It's a worn out tire about to come apart.
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Old 07-18-2016, 05:32 PM   #47
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If you dismount this tire it will most likely be egg shaped due to tread pulling apart inside. I've been through 2 sets of trail exploders, on 2 new campers, 3 explosive blowouts and a tread separation related flat. Caught the 5th one before it blew.
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Old 07-18-2016, 05:41 PM   #48
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Dropped it off and never saw it again.
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Old 07-18-2016, 08:33 PM   #49
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Why do so many trailer tires (ST) fail?

There is no clear answer, only speculation. Anecdotal information drives speculations into name calling and negative design confidence.

As everyday tire users we are spoiled. We don't suffer tire failures with our everyday vehicles. When we do they can almost always be accounted for. Most of us will go for many years without a single tire failure. Then we get a RV trailer and POP goes the tires.

The tires on our everyday vehicles are - in most cases - specifically designed for the vehicle they are on. They are quality graded for all sorts of conditions with tread designs to match the grading. Their load capacity has been derived from the maximum loaded vehicle with a 6% reserve left over which will seldom, if ever, be used. They are constantly in use so the built-in chemical compounds stay in action and degrading is held at the bare minimum. Most of them will wear out long before they will ever get old enough to be effected by degradation or age or both.

On the other hand the RV trailer also has tires specifically designed for their position. And that's where almost all of the similarity ends. Seldom has a tire design been scrutinized as often and with such detail as the ST tire. Almost all of the American manufacturers have given up on the trailer tire or have sent it to their off shore plants in faraway places like China, Vietnam, Korea, Taiwan or Thailand etc.

Most users that have had a ST tire failure or numerous ones are not going to like or agree with many of my analogies on this subject. The overwhelming evidence will support my stance but there are no official statistical findings to support what I say. But, logic always has a strong influence on many outcomes in the absence of other evidence.

In the absence of numerous recalls for the ST tire one must assume the design is sound and cannot, by itself, have caused the many failures reported against it.

Once the design is ruled out of the failure scenario the cause must lie elsewhere. So, is there a single cause or a combination of causes? I like multiple causes over the single one. Of course any highly abused single cause can also be the culprit.

Here are my accusations. We overload our trailers. We speed with our trailers. We take a somewhat lackadaisical attitude about our trailer's tire pressures. We store our trailers for long periods of time - six months or more - with no regard for the tire's condition or pressures. The trailer may not even be level which causes tires on the low side to become overloaded for their entire time in storage. We don't balance or rotate the trailer tires. Sometimes the spare is exposed to the elements for so long it explodes.
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Old 07-19-2016, 09:36 AM   #50
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Trail Express tires are pure garbage got those on mine when new, had a blowout no damage. Lions head wanted me to send them back the tire, ya right lion head and keep there garbage. No TRAIL EXPRESS DEALERS. Had 6000 miles on them but they were only a year old. Didn't know or have a TST system or know about them either now I have my 3rd set of tires on which Maxxis 8008 "D" rated, second set where GY Marathons with chuncks coming out on one showing the belt like yours and one with the belt just broke and ballooned the tire. Had TST on them when the belt punctured a small whole in the tire and was able to tell and pull off before damage to the trailer. Now I'm on Maxxis. Like them so far I have like 2000 miles on them since I put them on....
There are a few different reasons for a tire to fail. Loss of air pressure is the "cause" that TPMS can warn about. No idea what you mean by "blowout" as that word is used by many to identify almost any failure. Possibly it was a Tread Separation (bot broken belts or slipped belts) or a Run Low Flex (which you avoided because you now have a TPM (good decision)
Bet if you didn't have the TPMS you would have suffered a Run Low Flex and would now be complaining about foreign made junk tires.
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