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Old 09-07-2016, 10:14 AM   #1
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Thumbs down Goodyear Marathon-China bombs

Coming home from the Texas Gulf coast on Monday we had the first tire separation I've had in 10 years. 5er has 2650 miles when tire did its separation thing. I always check air pressure in the morning when leaving. All tires and inspect tread inside and out, were at 80 psi at 6AM when we left. Running 50 miles an hour in work zone, checked tire temp about 40 miles earlier when filling up fuel. Tires running @ 135 degrees. Tire wadded up around brake backing plate in one piece tread separation. Did damage to side of trailer minimum to what I've seen on the website here. I had to remove brake backing plate to get the tread off to get home. Side walls all there just not the tread. I will replace all and the spare this weekend. I have seen all the things here about what tire to buy and am still confused.
Checking does not always work be careful!

DANG maypops.
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Old 09-07-2016, 11:59 AM   #2
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My "general" opinion of ST's is they are all junk, however I thought Goodyear Marathons were ones that were supposed to be better than average. I dunno.


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Old 09-07-2016, 12:58 PM   #3
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About 3 weeks ago I had a blowout on the right rear of my 5er on the NY Thruway. I was running at about 63-64 mph. I have read all the threads about ST tires being rated at 65 mph. That being said I had minimal damage to my trailer. Just some cracked plastic around the wheel well and some sheet metal in the top of the wheel well, as well as a broken wire for the brakes. The tires on the trailer were 3 years old with around 9-10K miles on them. I just put new Carlisle tires 235/80/16 E rated, and speed rated L 75mph. I don't go that fast while towing but they are rated 10 mph higher than the standard of 65 mph.
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Old 09-07-2016, 01:16 PM   #4
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Work zone. You do not know that the tire wasn't punctured. I'm not saying you didn't have a failure, but, so many others things could have been the cause.

135 degrees seems WAY hot. My tires run about 10 degrees over ambient. 135 sounds like a death valley temperature.

I ran a set of Marathons over 25K miles and 5 years. All day tows in 95 degree weather; over National Forest Service rocky, dirt roads. Never a hint of an issue.

A TPMS can be a good investment.
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Old 09-07-2016, 03:05 PM   #5
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Quote:
Originally Posted by 325BH View Post
My "general" opinion of ST's is they are all junk, however I thought Goodyear Marathons were ones that were supposed to be better than average. I dunno.


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All of them are junk !!!
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Old 09-08-2016, 09:22 AM   #6
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My research is totally unscientific and is solely anecdotal evidence from reading forums. And, I'm certain that everything I say- someone will have an exception to.

So, IMO- the Goodyear Marathon is a good tire- up until about 12-13,000 lbs. After that is where I usually see problems reported.

I generally prefer the Maxxis m8008 over the Goodyear, but still only want that up to about 14,000 lbs.

Over 14,000 lbs, I want to go to a heavier duty tire. The Goodyear G614 and Sailun S637 seem to be the defacto "go to" for heavier rigs. It usually fits the existing 16" rims/wheels that heavier rigs have.

OR, you can go nuts and swap out the rims/wheels and go for a 17.5" commercial trailer tire. You get a huge jump in carrying capacity. It's what I did:
Major tire & wheel upgrade – no longer overloaded | Learn To RV
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Old 09-08-2016, 09:35 AM   #7
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My research is totally unscientific and is solely anecdotal evidence from reading forums. And, I'm certain that everything I say- someone will have an exception to.

So, IMO- the Goodyear Marathon is a good tire- up until about 12-13,000 lbs. After that is where I usually see problems reported.

I generally prefer the Maxxis m8008 over the Goodyear, but still only want that up to about 14,000 lbs.

Over 14,000 lbs, I want to go to a heavier duty tire. The Goodyear G614 and Sailun S637 seem to be the defacto "go to" for heavier rigs. It usually fits the existing 16" rims/wheels that heavier rigs have.

OR, you can go nuts and swap out the rims/wheels and go for a 17.5" commercial trailer tire. You get a huge jump in carrying capacity. It's what I did:
Major tire & wheel upgrade no longer overloaded | Learn To RV
This is the most reasonable Tire Post I have read in "YEARS"! Thanks Youroo!!
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Old 09-08-2016, 10:04 AM   #8
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This is the most reasonable Tire Post I have read in "YEARS"! Thanks Youroo!!
Great inflate his head even more
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Old 09-08-2016, 11:17 AM   #9
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Originally Posted by youroo View Post
This is the most reasonable Tire Post I have read in "YEARS"! Thanks Youroo!!
Thanks for the kind words.

Quote:
Originally Posted by dblr View Post
Great inflate his head even more
Just call me a balloon!
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Old 09-08-2016, 11:20 AM   #10
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One last thing is explore LT tires.

There's a huge debate on their applicability for trailer applications and you'll have throngs of people telling you that they're a million times better than ST tires (just read some of the comments above about "st tires are junk").

But from an applicability/viability perspective: know that a handful of higher end units come with them standard.

Also know their limitations: they have a lower load carrying capacity. You often have to increase the tire size or load range in order to achieve the load carrying capacity of your existing ST tires. Already being in a 16" tire could be difficult and for me, there wasn't room to increase the outer diameter of the tire at all.

--

There, hope I'm still being reasonable on my tire posts.
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