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Old 05-31-2016, 06:21 PM   #11
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Not sure manufacturer date. China bombs.
ST245R12 DS618 Trail Express.....from China. E95L
NCBBT15A04

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Old 05-31-2016, 07:36 PM   #12
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80 psi tire on a pop up trailer? Doesn't sound right.


2010 F250 5.4L 3.73
2011 Flagstaff 831FKBSS
Equal-i-zer 4pt 12K
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Old 05-31-2016, 07:45 PM   #13
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That is what I was thinking, my 13 inch wheels and tires call for max 65 lbs.

But different tires call for different pressures
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Old 05-31-2016, 09:56 PM   #14
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Yes. 80 psi. Had to replace one when new, was going flat. Had a plug. Hmnn. Think from when it was being transported, must have been plugged. Dealer couldn't find a 80lb. Match
Now i have 2 different tires . Need you get 3 good tires. Any recommendations?. I'm planning on getting a Roo this winter, but need to be safe rest of summer.

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Old 05-31-2016, 10:07 PM   #15
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Etrailer has one E rated tire in what looks to be your size.

Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E


2010 F250 5.4L 3.73
2011 Flagstaff 831FKBSS
Equal-i-zer 4pt 12K
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Old 05-31-2016, 10:08 PM   #16
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The manufacture date is stamped on. It's in 4 digits, 2 for week of the year, and 2 for year. If manufactured first of this year it'd be 0116.
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Old 05-31-2016, 10:57 PM   #17
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The manufacture date is stamped on. It's in 4 digits, 2 for week of the year, and 2 for year. If manufactured first of this year it'd be 0116.
Thanks, I'll look into tires and will check for manufacturers date. Might be Chinese year.

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Old 06-01-2016, 11:35 AM   #18
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Attachment 109611

End of our Memorial weekend camping. Blow out on interstate coming home.

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Looks more like a Tread Separation (factory issue) than "Blowout from Run Low Flex failure (low inflation from leak) to me.

Remember if you don't know why the tire failed how will you know what to fix.
The fact that the tire plant building was painted green rather than blue seldom is the real reason for a failure.

Have you read THIS post on Why Tires Fail?
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Old 06-01-2016, 01:17 PM   #19
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Looks more like a Tread Separation (factory issue) than "Blowout from Run Low Flex failure (low inflation from leak) to me.

Remember if you don't know why the tire failed how will you know what to fix.
The fact that the tire plant building was painted green rather than blue seldom is the real reason for a failure.

Have you read THIS post on Why Tires Fail?
Thanks for the info. I'm am very good with always checking pressure and torque settings before driving. I was on the road for about 1 hour. I never heard a thing. I looked back and saw rubber flying everywhere. Tires were what came with the new trailer. This is beginning of 3rd season.

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Old 06-01-2016, 02:41 PM   #20
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General replies to other comments.

This relates to true Run low Flex blowouts not Tread separations.
Checking tire pressure before a trip is like checking oil & water ion engine. I assume you have oil pressure gauge or low pressure warning light on instrument panel. Also Water temp gauge or light. Why do you have those and not TPMS for your tires? What makes you think you will never develop a puncture or valve core leak when driving. The fact that you can have a failure like that indicates you are only depending on passing motorist to warn you.

Tread separations do not happen overnight or even in a couple hundred miles. A "Free Spin" inspection as covered in my Blog will most likely allow you to find the problem before the tire comes apart and damages the RV.

RE "China Bombs" this is a simple term used by those that believe that because a tire plant is painted blue instead of green the tire will fail. With over half of the RVs on the road today having one or more tire in overload why are so many surprised that tires fail? Any margin built into the tire is taken up by the poor selection process (lowest cost , smallest size) of the RV company.

Based on some comments it is clear that few have bothered to try and learn about the special use of tires in RV service.

RV service is NOT the same as regular car service. Cars may have a load capacity margin of 20 to 30% with many RVs having less than 5% and that is assuming the owner has properly inflated the tires. Most ST type tires in service today have a MAX speed rating of 65mph. That's not average or occasionally but like the redline on engine RPKM means you are doing permanent damage every second you are exceeding the "redline".

As an owner of an RV you have a choice. You can wait and just complain about tire failures or you can educate yourself by reading some technical postings (not rants and complaints on RV forums) or attend seminar on tires.
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