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11-03-2013, 12:57 PM
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#2
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Senior Member
Name: Norm and Ginny
Trailer: Scamp 16
Florida
Posts: 7,517
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Thanks Bob. Many could pick up a lot from this. Part of being careful, knowing that heat is a tire destroyer, we try to start and and our travels before the heat of the day.
__________________
Norm and Ginny
2014 Honda Odyssey
1991 Scamp 16
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11-03-2013, 05:46 PM
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#3
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Member
Name: Tom
Trailer: Casita Spirit Delux
Virginia
Posts: 74
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Bob...thanks for the information. We purchased our Casita three years ago , used, and the tires still appear to be in good condition. I'm not sure when the tires we're put on the trailer. I'm assuming about one year before we purchased it. If that is the chase then my tires are four years old and I plane to replace then before the start of next camping season. The information you provided is very useful, leaving only two questions. What brand of tires meats all the standards required? Which brand is the best? Thanks TomB
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11-03-2013, 11:05 PM
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#4
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Senior Member
Trailer: Scamp
Posts: 7,056
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Very Good. Thanks for posting this.
It appears that Carlisle has stated information in a much more clear manner. I noted that ST tire pressures are listed on sized vs maximum load as a pressure rather than a chart of pressures. I also noticed that they state clearly "Maintain tire pressure at the maximum PSI recommended on the sidewall"
Guess I'll have to look at Goodyear and see if they clearified things bit.
__________________
Byron & Anne enjoying the everyday Saturday thing.
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11-04-2013, 06:23 AM
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#5
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Senior Member
Name: Wayne
Trailer: Airstream Sold, Nest Fan
Ontario
Posts: 2,002
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In my earlier days I worked for two major tire companies. By far we had a much higher failure/return rate with the ST tires than P or truck tires.
Wondering if folks followed the tire care guidelines as outlined in the article if the tires would stand up better???
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11-04-2013, 07:00 AM
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#6
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Senior Member
Trailer: 1972 Boler American and 1979 Trillium 4500
Posts: 5,141
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Although we've seen this article before, I'm still confused by the LT designation on trailer tires.
I quote:
An "LT" designation, when shown on a trailer tire size specifies load
range only, it is not designed for use on light trucks.
and
ST tires are branded with a load range (LRB, LRC, LRD, LRE and LRF)
on the sidewall, listing load range letters in the sidewall description.
For example, ST205/75R15LRD.
Can anybody explain this further?
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11-04-2013, 07:48 AM
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#7
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Senior Member
Trailer: Casita Spirit Deluxe 2003 16 ft
Posts: 1,899
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Roy, I'm reading the statement as saying if there is also an LT in a trailer tire's size designation it means load range. I've searched Tire and Rim and ETRTO (European) standards and can't find any precedent. Maybe it's in the Japan code but I can't find them at the moment.
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11-04-2013, 10:32 AM
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#8
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Senior Member
Trailer: 92 16 ft Scamp
Posts: 11,756
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Quote:
Originally Posted by MC1
In my earlier days I worked for two major tire companies. By far we had a much higher failure/return rate with the ST tires than P or truck tires.
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Its been explained to me by more than a few tire shops that its due to the usage of the tire not the tire itself.
ST tires are mounted on trailers that are often parked for long periods of time either in the hot sun (Ultraviolet rays weakens the rubber) or parted in a wet environment (rot from the inside).
Truck tires mounted on trucks which are normally used far more frequently avoiding the above issues.
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11-04-2013, 12:11 PM
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#9
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Senior Member
Trailer: Scamp
Posts: 7,056
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Quote:
Originally Posted by Steve L.
Roy, I'm reading the statement as saying if there is also an LT in a trailer tire's size designation it means load range. I've searched Tire and Rim and ETRTO (European) standards and can't find any precedent. Maybe it's in the Japan code but I can't find them at the moment.
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I believe it's mentioned someplace else on the Carlise Web site. There's some tire charts with tire size numbers. I think I saw LT in there.
__________________
Byron & Anne enjoying the everyday Saturday thing.
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11-04-2013, 12:14 PM
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#10
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Senior Member
Trailer: Scamp
Posts: 7,056
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Quote:
Originally Posted by Carol H
Its been explained to me by more than a few tire shops that its due to the usage of the tire not the tire itself.
ST tires are mounted on trailers that are often parked for long periods of time either in the hot sun (Ultraviolet rays weakens the rubber) or parted in a wet environment (rot from the inside).
Truck tires mounted on trucks which are normally used far more frequently avoiding the above issues.
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Vehicle tires will have the tread worn and will be replaced usually in less than 5 years. Trailer tires will show little if any tread wear in the same length of time. I replaced mine after 5 years and they looked new. Too many people judge the health of a tire by the amount of tread left.
__________________
Byron & Anne enjoying the everyday Saturday thing.
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11-04-2013, 12:49 PM
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#11
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Senior Member
Trailer: Trails West Campster 1970
Posts: 3,366
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Okay, I just went out and wrote down numbers from my tires. I've never been able to figure out this age thing and I still can't. These tires were installed in 2007- that I know for a fact. I don't remember having to replace any of them though I did have a leak repaired so it is possible I'm forgetting doing that.
I can find two four digit numbers. 3209E (after DOT X20B) and 232 1 after HF (or HP.)
Which, if either of these, is related to tire age?
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11-04-2013, 12:50 PM
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#12
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Senior Member
Trailer: Escape 17 ft
Posts: 8,317
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Goodyear Marathon have a 6 year limited warranty. Replacing at five years might be premature.
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11-04-2013, 01:23 PM
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#13
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Senior Member
Trailer: Casita Spirit Deluxe 2003 16 ft
Posts: 1,899
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Quote:
Originally Posted by Bobbie Mayer
...Which, if either of these, is related to tire age?
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The last 4 numbers of the string that follows DOT. WWYY (WW =week of the YY =the year. 1307= thirteenth week of 20 07.
Or in the picture: 42nd week of 20 02
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11-04-2013, 01:46 PM
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#14
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Senior Member
Trailer: Trails West Campster 1970
Posts: 3,366
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So maybe I did replace that one tire. I guess I need to check the other one to see how old it is. Has to be at least 07.
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11-04-2013, 02:01 PM
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#15
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Senior Member
Trailer: 1972 Boler American and 1979 Trillium 4500
Posts: 5,141
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Thanks Steve,
I looked at the Carlisle tires on my boler. Here is some of the info on them if it helps.
145R12C 87/85L
Replaces 145R12LT Extra Load
Load Range D
Radial Tubeless
Replaces 8 Ply Rating
For Trailer Use Only
AQO3 Dot AQCC 0908
Sidewall 2 polyester
Tread 2 polyester + 2 steel
Max Load
555 Kg / 1220 Lbs single
525 Kg / 1155 Lbs dual
65 PSI cold
On edit: Also says Radial ST in big bold letters
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11-04-2013, 02:33 PM
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#16
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Senior Member
Name: Frank
Trailer: 2012 ParkLiner #006
New York
Posts: 2,273
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All I run on any trailers I have is radial trailer tires. The difference from bias belted is amazing!
Frank
__________________
2012 ParkLiner #006
2013 4wd 4 door F150 3.5L Ecoboost with 9200# tow package
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11-04-2013, 03:17 PM
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#17
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Senior Member
Trailer: Trails West Campster 1970
Posts: 3,366
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The other side also says 09. Doesn't make sense as I put them on when I got the trailer and I sure don't remember replacing two of them other than when I first put them on. I'll check with Les Schwab as they did it and they keep it in the computer- if they ARE 09 I'll leave them on.
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11-04-2013, 04:01 PM
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#18
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Senior Member
Trailer: Class A Motorhome
Posts: 7,912
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Marathon Quality ???
Quote:
Originally Posted by Glenn Baglo
Goodyear Marathon have a 6 year limited warranty. Replacing at five years might be premature.
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1. A 6 year warranty won't be much better than a 3 year warranty if, after 70 months a tire fails in the boondocks and the only replacement you can find is a Schnitzu Uberroader tire, that's made in Uszberkonia. (Yoz-ber-konia).
Goodyear knows that there is almost no chance of someone owning the same trailer for 6 years, warrantees are seldom transferable, and pro-rated warrantees are almost always based on full MSRP.
2. The Marathon tire family has not had that good a following as to quality, with lots of reported tire failures.
Google Goodyear Marathon quality and read up first
My apologies to any Uszberkonians I may have offended.
.
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11-04-2013, 04:04 PM
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#19
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Senior Member
Trailer: Escape 17 ft
Posts: 8,317
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The web will soon have you replacing your trailer tires every year.
Much of the Marathon web mania was unwarranted.
There. I just added to the wealth of web knowledge.
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11-04-2013, 04:57 PM
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#20
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Senior Member
Trailer: 92 16 ft Scamp
Posts: 11,756
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Quote:
Originally Posted by Bob Miller
1. A 6 year warranty won't be much better than a 3 year warranty if, after 70 months a tire fails in the boondocks and the only replacement you can find is a Schnitzu Uberroader tire, that's made in Uszberkonia. (Yoz-ber-konia)..
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Can attest to that! The options on tires in Needles California I discovered isnt all that great! Funny part was I ended up with a brand of tire I had never heard of but while attending the NOG spring meet this year another member looking at my tires and indicated they had the same tires - guess how they ended up with them & where from! LOL We had a good laugh over it.
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