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Old 02-22-2017, 08:08 PM   #1
limit4
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Tires

I have a 2013 Cougar xlite 26sab. I have just less than 10000 miles on it. We have camped about 16 weeks in the camper. When at home it is under roof and on boards, the tires are covered. My Question, when should I change the tires? They look good as for as tread is concerned. Thanks for your comments in advance. Thanks, sounds like I get to spend some money, now the next question, what brand of tires?
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Old 02-22-2017, 08:46 PM   #2
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They get rotten from the inside out. No matter what the outside looks like. Your getting by on barrowed time before 1 or more blows out. If you travel on a long trip, 1 blows and than the other 1 that was on the same side not to much later. You put on the spare of same age and it maybe nearly as bad as any tire never used on the road. Time for 5 new tires.
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Old 02-22-2017, 09:02 PM   #3
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There is a date code stamped on the sidewall of the tire. It will be 4 digits:
First 2- week of manufacture
Last 2- year of manufacture

So 3516 would translate to 35th week of 2016. 6 years is the accepted limit I believe.
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Old 02-22-2017, 09:06 PM   #4
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Quote:
Originally Posted by limit4 View Post
I have a 2013 Cougar xlite 26sab. I have just less than 10000 miles on it. We have camped about 16 weeks in the camper. When at home it is under roof and on boards, the tires are covered. My Question, when should I change the tires? They look good as for as tread is concerned. Thanks for your comments in advance.

If you have the original tires they need to be replaced. They are time bombs and are now about to explode.
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Old 02-22-2017, 09:08 PM   #5
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If like my original China bombs, the tread will still look good however in my case tire side wall bands were breaking down. Luckily the state inspector found it during the annual inspection. When I looked at it idid not recognize it until he showed me exactly where it was an spun the wheel. That did it, all new tires
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Old 02-23-2017, 05:18 AM   #6
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Originally Posted by limit4 View Post
I have a 2013 Cougar xlite 26sab. I have just less than 10000 miles on it. We have camped about 16 weeks in the camper. When at home it is under roof and on boards, the tires are covered. My Question, when should I change the tires? They look good as for as tread is concerned. Thanks for your comments in advance. Thanks, sounds like I get to spend some money, now the next question, what brand of tires?
Mileage isn't much of an indicator for Original Equipment ST tires. They age out. 3-5 years is the norm depending on how well they are maintained and their storage conditions.
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Old 02-23-2017, 04:07 PM   #7
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I change Carlisle tires every three years. Would not be concerned up to 5 years. I average 6500 - 10,000 miles annually often to 750 miles daily. Any tire over 5 years would be a concern to me including the spare.
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Old 02-23-2017, 04:50 PM   #8
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I second Carlisle Radial Trail HDs or Maxxis M8008s. As a matter of fact, I was going to have a set of Carlisle's mounted on new wheels for my trailer today. But when I arrived at the DT store, I politely asked for the DOT code on the tires. 2 had DOT dates of 1416. Told them I wanted tires that were dated no longer than 4 months ago. He agreed and is ordering them from Carlisle directly. Another visit next week.
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Old 02-23-2017, 06:30 PM   #9
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I'll throw a third on the Carlisle Trail HD's. One of my better investments...peace of mind. I had one of the original "China bombs" let go less than 2 years after manufacturing. They are garbage...
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Old 03-06-2017, 11:01 AM   #10
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I had a little over 2000 on my 2012 26sab when one tire blew. Tire on other side would have soon. I replaced with Carlisle on all 4. . But it did surprise me that there are no trailer tires made in US that I could find.. I would replace them soon..
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Old 03-06-2017, 11:15 AM   #11
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I had a little over 2000 on my 2012 26sab when one tire blew. Tire on other side would have soon. I replaced with Carlisle on all 4. . But it did surprise me that there are no trailer tires made in US that I could find.. I would replace them soon..
Actually Goodyear Endurance are made in the USA. Also if you read some of the other posts Carlisle tires are made with much better quality control than OEM tires that came on our Keystones even though they are made in China. Maxxis are also good and made in Thailand.
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Old 03-06-2017, 12:04 PM   #12
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I was at an RV show this past weekend and ran the idea of the new Goodyear Endurance past the owner of a high end RV dealership. He told me he does not know enough about the tire yet to make a comment. He did take me over to one of his units and showed me the Michelins he says they put on every one of their new units that comes in the door from the manufacturer. P215 75 15 Defender. Says he has a whole room full of new take off china bombs if I wanted a set cheap. Curious as to what the groups thinks about using these Michelins in place of the GY Endurance.
As an edit to my original, I'm not certain what size the OP was using or questioning. I'm curious whether or not an XL load tire can be used in place of a ST tire. Thanks.
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Old 03-06-2017, 12:32 PM   #13
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I'm sure the RV dealer "knows of what he speaks" but a P tire would have soft sidewalls as compared to an ST tire's more rigid sidewalls. P tire would have more flexing. Just my own observation.
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Old 03-06-2017, 02:16 PM   #14
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I went with Maxxis M2008 10 ply E tires. I did replace the spare even though it had never been on the ground, which speaks to how fortunate we have been. Thanks to all.
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Old 03-06-2017, 02:24 PM   #15
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The Michelin Defender LTX 215 75R15 tire is rated at 1764 pounds at 44PSI (max inflation pressure). https://www.tirerack.com/tires/tires...=175TR5DLTXOWL

Any brand ST tire size 205 75R15 LRC is rated at 1850, LRD at 2150
ST tires size 225 75R15 LRC is rated at 2150, LRD at 2540 and LRE at 2830.
All ST tire ratings are at recommended pressure. http://www.maxxis.com/trailer/traile...nflation-chart

As you can see, the Michelin Defender is possibly an appropriate replacement, only for the smallest ST tire above and even then, it's still rated almost 100 pounds less than the ST tire that comes standard on travel trailers. That's 400 pounds of load capacity reduction on a tandem axle trailer.

There's more to meeting load ratings than just putting a "name brand truck tire" on a trailer. I'd believe that dealership is setting itself up for a very expensive lawsuit if they are actually doing what you describe.
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Old 03-06-2017, 04:30 PM   #16
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The Michelin Defender LTX 215 75R15 tire is rated at 1764 pounds at 44PSI (max inflation pressure).
For RV trailer service it must be derated by about 10% to 1603# @ 44 PSI.

http://www.michelinman.com/US/en/hel...res.html#tab-4
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Old 03-06-2017, 05:02 PM   #17
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For RV trailer service it must be derated by about 10% to 1603# @ 44 PSI.

http://www.michelinman.com/US/en/hel...res.html#tab-4
Then that means it won't provide as much load as any of the 15" C/D/E ST tires and is rated less than all of the 14" LRC ST tires....

In other words, it's not suited for trailer use on any of the Keystone products, even the "ultra-lite" ones.
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Old 03-07-2017, 05:47 AM   #18
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Thank you. As stated was not my intention to high jack the thread. Going to stick with the Endurance line.
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Old 03-07-2017, 09:02 AM   #19
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A discussion about the use of passenger tires on RV trailer axles pops-up every now and then.

It is the vehicle manufacturer’s responsibility to select tires appropriate for fitment to the vehicles they build. The DOT does not prohibit the use of any DOT certified highway tire from being used as the vehicle manufacturer sees fit. However, because of their softer sidewalls, Passenger tires must have their load capacity derated for service on various other vehicles.

Here is an excerpt from the regulation that outlines the procedure to be used to derate the “P” tires.

This is paragraph S4.2.2.2 from FMVSS 571.110; When passenger car tires are installed on an MPV, truck, bus, or trailer, each tire's load rating is reduced by dividing it by 1.10 before determining the sum of the maximum load ratings of the tires fitted to an axle.

Note: At a recent boat show I observed that more than one third of the dual axle trailers had 16" passenger tires. Those trailers are built using the same regulations as RV trailers. In the past I observed passenger tires on some of the sporty Denaly fivers. They were 20".
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Old 03-07-2017, 10:49 AM   #20
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I inherited my son's 16' race trailer. It had passenger tires on it that lasted a long time (except for one tire that my wife dragged on a curb). During the course of owning it, I was educated on the reason and purpose of ST tires. It now has Carlisle Radial Trail RH LRD tires. GW is 7000# and I'm sure it has been loaded to that. The old LRC P tires were not up to the task.

To many folks, tires are tires, but that isn't the case.
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