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Old 07-17-2013, 02:29 PM   #1
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Cool Does ply make for a better tire?

Hey Guys,

First time at the forum so I'm hoping I'm in the right area. I currently own a 2009 Northtrail (WideTrax) 27' Trailer, it came with Duro Tires (ST205/75/D14) which I am unhappy with; they have cracked along the outside wall. I was looking at either Carlisle Trailer Tires or Goodride Trailer Tires and was wondering if anyone has any experiences with these tires.

The other thing that I was looking at was the ply of the tire and whether or not a higher ply is worth while or not:

Carlisle 225/75R15 D/8P $131.84(can$)

Goodride 225/75R15 E/10P $123.61(can$)

I'm assuming that the D/8P & E/10P is the ply of the tire. Do I really need the higher ply? Is it going to save me money in the long run with a higher ply? Will wear of the tire be longer? Also, keep in mind I had the trailer suspension flipped last year which gave me approximately a 4" lift on the trailer so really size is not much of a concern. The above prices are burrowed from Kaltire.

Thanks in advance for any suggestions or recommendations
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Old 07-17-2013, 02:46 PM   #2
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I'd be interested in the age of your tires, though since they're original I presume they're at least four years old, perhaps older. Trailer tire life expectation is from three to five years, so it's no surprise that yours are showing signs of age!


Per your question:

"Ply rating" isn't an indicator of number of plies- it's an indicator of load-carrying capacity.

An "E" range tire carries more weight than a "D" range tire. Without knowing your rig's weight, I can only say that original mfr. size spec is usually considered sufficient, but since so many folks load their trailers up more than they thought they would, there's no harm in going to a higher load range.

One precaution:
Going up in range may also mean going up in pressure...in that case, do take care to insure that the rim the tires are going on will withstand the higher PSI. (Wheel PSI limits usually stamped on inside of rim under tire)

But load range itself will have no effect one way or another on tire life expectancy.
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Old 07-18-2013, 03:16 PM   #3
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Thanks

I wanted to thank you for the quick response .. yes my tires are more than likely 4+ years old. I bought the trailer brand new in 2009.

Me and the wife have decided to go with a Goodyear tire; the rep at Kaltire said that he has had no issues with the tires he is selling us and also has return customers for these exact tires, so i'm rolling the dice here.

Anyways thanks for the info
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Old 07-18-2013, 03:20 PM   #4
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Sounds good...here's a tip:

Do check the date code on the new tires before committing. I personally shoot for nothing older than three months from date of manufacture. Probably not a concern since it sounds like a popular and thus fast-turnover tire, but better safe than sorry, right?

Here's a chart in case you're unfamiliar with where/how to read:

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