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Old 07-30-2013, 07:53 AM   #29
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Originally Posted by CapriRacer View Post
Bottomline: If the tire failure isn't reported, then it's like it never happened. While refusing to buy ST tires seems like a good tactic, in reality, it would take so long for the affect to be noticed and the numbers would be so small that I doubt it would work at all.
Yep I understand, but from an economic standpoint my immediate solution is to go with an LT rather than continue my cycle of replacing ST's every three years due to belt issues. #1 it saves damage to the trailer caused by the tire coming apart at speed. #2 while the cost of my 16" LT is higher, I consider that offset by the ability to get a minimum of 5 years of service from my LT's. #3 while I agree that it may be a blip on the radar to the tire manufacturers, why reward them and purchase a product that for many of us, has given us unsatisfactory service?


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Old 07-30-2013, 08:22 AM   #30
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Originally Posted by jcanavera View Post
#3 while I agree that it may be a blip on the radar to the tire manufacturers, why reward them and purchase a product that for many of us, has given us unsatisfactory service?
I don't think anyone is suggesting that you buy tires that you suspect will fail, just because you can report the failure.

BUT, if you have a tire that fails due to a manufacturing defect, by all means report it! No matter what brand it is, no matter whether it's on your trailer or your tow vehicle, or on any other vehicle you may own. Whether you bought the tire or it came with the vehicle or trailer.

Remember that big Firestone tire recall back in 2000? 6.5 million tires recalled and replaced, because enough failures were reported to cause a big enough blip on NHTSA's radar.

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Old 07-30-2013, 04:47 PM   #31
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I dumped the 15" wheels and GYM's one month after I took delivery of my 2012 28' Intl. After just over a year (and about 14,000 miles) on my 16" wheels and Michelin LT's, I couldn't be more pleased. I did install a TPMS as well. After a four week trip to the Southwest, and just completing two weeks in the Northeast, my tires look brand new. While I don't habitually go over 62 MPH, there are a few times I've had to hit 70. Think this tire discussion (which has hundreds and hundreds of posts) has been very helpful to illuminate possibilities and allow owners to make their own choices. I made mine and appreciate all those who shared their experiences to allow me to make a more informed choice.
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Old 07-31-2013, 06:59 AM   #32
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Originally Posted by gmw photos View Post
Ok, now I understand what you are saying. Thanks for the clarification. So I take from your comments here that using a LT tire, that has sufficient load capacity ( with adequate reserve ) for the load we are placing on them, we are getting effectively the best of these worlds:
1. load capacity
2. speed rating
3. potentially higher build quality

I see load capacity and speed rating as inversely related - and I see the third item as labeled incorrectly. There may be quality issues, but I think the real problem is design - as in what materials are supposed to be used where.

Originally Posted by gmw photos View Post
........, although you didn't comment on it:

4. likely longer life ( from a strictly age standpoint )

My ideas have been changing over time and I think the age issue is partially due to the fact that ST tires are more highly stressed and burn off the antioxidants more rapidly, partially because antioxidants are very expensive and likely to be used at reduced levels, and partially because the overall structure isn't as robust (boy, I hate that word, but nothing else fits!).

Originally Posted by gmw photos View Post
......Regarding running higher pressures in a ST tire to raise the speed rating, it is my understanding that GoodYear approves running up to 75 psi in a load range D Marathon. Doing so increases it's safe operating speed to 75 mph. However they do point out this does NOT increase the load carry capacity, and that you still must observe wheel ( and valve stem ? ) limits......
This is part of the tire standard published by The Tire and Rim Association (TRA). It applies to ALL ST tires. In fact, this principle applies to LT tires - and you can extend it to ALL tires. It's part of the physics involved in tires.

Some types of tires have these sorts of things published so it is easy to see the relationship. But other types of tires are tightly defined that there isn't much wiggle room. For example: Passenger car tires are supposed to be used on passenger cars and they are designed to always to be used on paved streets, have a speed limit. Those are enough limitations that the load tables don't have special notes about differing speeds.

EXCEPT: They do have special notes for P type tires used on trucks - and P type tires used at very high speeds.

Originally Posted by gmw photos View Post
.......Thanks again for your clarification.
You are quite welcome.

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