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Old 05-11-2017, 10:21 AM   #1
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thoughts advice on these tires... ? thx

my trailer has Bluestar ST627 Load range D max load for dual axle 1800LBS @ 60PSI
other coding: ST7.00-15 ST 205/90 D15

my trailer weighs in dry at 5,000lbs / dual axle 31' Sov..
tires new in 2014 and only rolled on about 2 x per year since.

any advice on these much appreciated ..
correct inflation ? I've been running at 50psi
never drive much over 55mph
life expectancy?

thanks , nick
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Old 05-11-2017, 10:27 AM   #2
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here's a good explanation on tires
http://www.boatus.com/magazine/trail...iler-tires.asp
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Old 05-11-2017, 10:28 AM   #3
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6 years from date of manufacture, no matter when purchased.
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Old 05-11-2017, 10:34 AM   #4
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tire pressure warning system ? looks cool ...

anyone use these? seems like a good investment considering what it could save from happening ..!

https://tsttruck.com/product/507-starter-system-kit/
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Old 05-11-2017, 10:41 AM   #5
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Quote:
Originally Posted by overlander63 View Post
6 years from date of manufacture, no matter when purchased.
thanks, I'm seeing two sets of numbers:
1210
2912

gotta be Dec of 2010? looks like I was sold new "old" tires in '14 .. lesson learned ..
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Old 05-11-2017, 10:54 AM   #6
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12th week of 2010- so March 2010 or so- 7 year old tires- due for replacement
29th week of 2012- so July 2012 or so- 5 year old tires- I would replace them...
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Old 05-11-2017, 10:56 AM   #7
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local tire shop says, "official line" is to replace after 6-7 yrs , but if tire sat in a warehouse with no sun exposure, that wouldn't necessarily apply ... implying it's more about time on the trailer exposed to the elements than an absolute from date of production.
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Old 05-11-2017, 10:58 AM   #8
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Originally Posted by m.hony View Post
12th week of 2010- so March 2010 or so- 7 year old tires- due for replacement
29th week of 2012- so July 2012 or so- 5 year old tires- I would replace them...
thanks, are you running classic trailer tires? or I see a lot of chatter here about truck tires ? Micheline .?
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Old 05-11-2017, 11:07 AM   #9
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If your moving that trailer it should be high on your priority list to swap in some new tires. The tires have simply aged out.
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Old 05-11-2017, 11:09 AM   #10
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Quote:
Originally Posted by nickclifford View Post
local tire shop says, "official line" is to replace after 6-7 yrs , but if tire sat in a warehouse with no sun exposure, that wouldn't necessarily apply ... implying it's more about time on the trailer exposed to the elements than an absolute from date of production.
I am suspicious that is a line to cover selling tires sitting around too long, Tires deteriorate from the inside out, dry rot. From what I understand UV causes surface cracking. I live in the southwest have not covered my tires for the most part and see no cracking at 5+ years. That is not to say covering your tires is not a good idea.
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Old 05-11-2017, 11:35 AM   #11
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I am suspicious that is a line to cover selling tires sitting around too long, Tires deteriorate from the inside out, dry rot. From what I understand UV causes surface cracking. I live in the southwest have not covered my tires for the most part and see no cracking at 5+ years. That is not to say covering your tires is not a good idea.
I am not familiar with your brand of tire. I have run GoodYear Marathons going on 15 or 16 years now with zero problems. The GoodYear website has good information on trailer tires including a chart that shows load vs pressure. Also, GoodYear has a new trailer tire out that has higher load ratings and speed limits in case you are interested. The new ones are said to be made in the USA. If true they are the only trailer tires made here. My early Marathons were made in Canada and the ones on my '67 now were made in China.

Your speed limit sounds a lot like mine and I think you are wise to keep speeds down, not because of tires but because of the length and weight of the rig. It is a lot harder to dodge a dangerous situation while towing than when not.
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Old 05-11-2017, 11:49 AM   #12
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Tire blow out thread

it would interesting to see a thread dedicated to any incidents and see how in reality tires fail. Why, when, age, road conditions, speed, storage conditions etc etc.
We live in a highly litigious society with the most bizarre warning labels on everything "don't hold this iron to your face, it could result in a serious burn" type silliness. My curious mind wonders how much of a safety overkill "sell by" factor is built into the 6yr swap out recommendation.

In all my 35+ yrs of driving, never ever had a blow out or even a flat ... but you see someone every week on the roadside, so it happens! Better to be safe than sorry ...
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Old 05-11-2017, 12:12 PM   #13
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thoughts advice on these tires... ? thx

Quote:
Originally Posted by nickclifford View Post
thanks, are you running classic trailer tires? or I see a lot of chatter here about truck tires ? Micheline .?


I have LT tires on my trailer.
Never could get more than three years out of ST tires.
Never got more than 7 years out of P-rated or LT tires.
We do use our trailer 20-something times per year.
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Old 05-11-2017, 12:33 PM   #14
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Quote:
Originally Posted by nickclifford View Post
it would interesting to see a thread dedicated to any incidents and see how in reality tires fail. Why, when, age, road conditions, speed, storage conditions etc etc.
We live in a highly litigious society with the most bizarre warning labels on everything "don't hold this iron to your face, it could result in a serious burn" type silliness. My curious mind wonders how much of a safety overkill "sell by" factor is built into the 6yr swap out recommendation.

In all my 35+ yrs of driving, never ever had a blow out or even a flat ... but you see someone every week on the roadside, so it happens! Better to be safe than sorry ...
Here's the closet thing we have that covers a broad amount of time. http://www.airforums.com/forums/f438...oll-76867.html

It's not a perfect poll since it doesn't cover those of us who have had more than one failure. For example I have had Marathon Failures and Maxxis ST Tire failures. No failures with the current set of Michelin 16" LT's.

Jack
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