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Old 12-04-2010, 02:57 PM   #21
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Question Another monkey wrench

Trailer Tire Facts - Discount Tire

The Discount tire web site seems to imply that there are ST and LT TRAILER tires. It goes on to say that the LT designated Trailer tires should never be used on a light truck since they are not designed to handle the torque of the powertrain.

So if you thought you knew what the heck was going on this will certainly throw a monkey wrench into the discussion. Has anyone besides Discount tire even HEARD of an LT Trailer tire?

Seriously, they mean a TRAILER ONLY application LT series.
Could this be the origin of the "They put LT tires on my camper so regular truck tires must be better than ST tires."?
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Old 12-04-2010, 03:15 PM   #22
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Motorcross, you stated that "I myself will never buy any tire made outside of this country". Does that mean you wouldn't buy tires made in Canada?
I don't know, I need to do some research to see if they go through the same standards as tires here do.

From everything I have read the tires that come from across the water DO NOT have to pass the same safety standards.
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Old 12-04-2010, 03:15 PM   #23
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I think LT trailer tires might possibly exist but are defined by unique sizes that don't exist in cars or trucks? Anyway, these discussions are always a ***** storm and I can't believe the prejudice and mis-information out there. Here is what I'll say because I know it to be true. I've towed over 50 thousand miles on Carlisles and Marathons, all made in China, with nary a problem. ZERO problems. These miles were piled up on all day tows across Nebraska, Wyoming, and Montanna in 90 degree + heat; and in the mountains. IMO, most issues are due to under-inflation, over-loading, excess speed, poor trailer balancing, out-of-date tires, and road hazards. How do you know, when your tire "blows up", that it didn't run low on pressure due to a road hazard? Once it blows, the evidence is gone. Certainly there will be manufacturer defects and you may have experienced one. But I would bet that most problems are user induced and/or a road hazard.
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Old 12-04-2010, 03:47 PM   #24
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It has been two years since I bought tires for our dually but they defiantly were LT light truck tires. 235/75R17 LT
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Old 12-04-2010, 04:15 PM   #25
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Oh yea, and Bass Pro Shop are definitely experts in Tire construction.
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Old 12-04-2010, 04:38 PM   #26
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Originally Posted by MotocrossCamper View Post
I don't know, I need to do some research to see if they go through the same standards as tires here do.

From everything I have read the tires that come from across the water DO NOT have to pass the same safety standards.
Source Please.
All tires imported into this country must pass DoT established standards. That is not to say bad tires are sold. In fact due to the shipping time lag from overseas many tires sold as new are in fact months into their two warranty when they hit the store shelves. Tires made here have also been recalled when they have been determined to have manufacturing flaws in them. The Firestone debacle comes to mind.

The Carlisle C rated tires are horrible, no doubt about it. Mostly because they are rated at almost the exact load rating for a maxed out camper. There is no room for under inflation; impact damage from curb strikes; or over speed.

As stated on several threads here, ALL manufacturers sell under their own brand name tires made in other countries. The only way to tell where a particular tire was made is to look at the DoT code on the tires they are about to put on your car/truck/camper.
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Old 12-04-2010, 04:51 PM   #27
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Oh yea, and Bass Pro Shop are definitely experts in Tire construction.
Like I stated earlier; no amount of hard data will sway the "true believer." The true believer will only accept input that proves their conclusion and ridicules input that does not.

I would love to see ANY link to an industry source that validates the LT argument. The Bass Pro Shop link was well done and had lots of good information. They were also very positive on their recommendations regarding ST rated tires and why.

My great grandfather had saying in Italian he used all the time (mostly about me) that went, "You can wash the head of a mule; but in the end it is a waste of water and soap; and upsets the mule."

So, The attachments and links are there. Use them or not. Make your own choice. I prefer to buy American (Canadian OK) when I can, just to keep as many jobs here as possible. PAX and stay safe.
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Old 12-04-2010, 05:24 PM   #28
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Good research and information, Lou.

Quote:
Originally Posted by acadianbob View Post
IMO, most issues are due to under-inflation, over-loading, excess speed, poor trailer balancing, out-of-date tires, and road hazards. How do you know, when your tire "blows up", that it didn't run low on pressure due to a road hazard? Once it blows, the evidence is gone. Certainly there will be manufacturer defects and you may have experienced one. But I would bet that most problems are user induced and/or a road hazard.
I agree with these statements. I am still member of the Trailmanor Forum, and there seem to be a lot more blowout (flats ??) reports there, as many members are running near or over the tire ratings on their singe axles. Many have switched from the stock 14" wheels and tires to 15" wheels and tires, so that there they can get a higher rated tire.......I did that myself with my Trailmanor after reading all of the problems. Trailmanor now offers 15" tires on the their trailers, putting more leeway between the weight of the trailer and the maximum carrying weight of the tires.

As Bob implies, I too am a believer that most "blowouts" are actually tires that have been run flat. On a spring trip, the campers in our group that were following my DD and SIL noticed the camper leaning. When convenient, they pulled out in the passing lane to check on things, and that is when the tire starting giving up pieces. A CB call to all of us, and we made a safe stop. Even though this tire was eaten up, it did not blow out......it went flat, and disintegrated because of that.

Unlike the vehicles that we drive, we cannot feel a tire going down on our towed vehicles. That is why I am a firm believer in a tire pressure monitoring system (TPMS) for tow-ables. In addition to monitoring tires going down the road, I can also conveniently check the tire pressures before I leave in the morning, and immediately remedy a low tire situation.
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Old 12-04-2010, 06:26 PM   #29
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When my Carlisle C rated tire blew on the beltway around DC, the Goodyear dealer I took it to looked at all the tires and showed me the spots where dry rot cracking had already started. The tires were 1 1/2 years from manufacture and had been on the road for about 8,000 miles (and 1 year). The tires were inflated to 50 PSI which was required for the load I was carrying.

The blow out could not be isolated to poor manufacture according to the Goodyear dealer. He stated that the cracking could be because I did not use wheel covers for the two months we spent in Key West and the blow out could have been caused by a curb strike (right front camper tire) I had on the way DOWN to Florida about six months before the blowout.

He said a broken steel belt wire or wires, broken at the time of the curb strike, could take that long to work its magic on the tread belts and result in tire failure at speed. He asked me if I had EVER had a curb strike on that tire, and I had to think hard to remember that it had happened. It was minor IMO and I stopped at the first strip mall to check the tires. There appeared to be no damage and I "pressed on with pride" with no thought about the safety of the tire.

When I got back from that trip I bought four new D Rated Goodyear Marathon STs to replace the C rated Carlisles. I also have tire covers on them now.
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Old 12-04-2010, 06:43 PM   #30
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OK, one last question. What percentage of ST tires have problems vs LT tires on trailers?
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