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Old 09-16-2019, 08:27 AM   #1
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Trailer Tires

Are the Carlisle Radial Trail HD tires any good? I can't afford to go crazy here but don't want to have a blow out either. The Goodyear Endurance were crazy expensive but got great reviews. Tires on the trailer "look" ok. Plenty of tread left & no dry rotting but went to take off this weekend & one of the tires had a huge knot on the inside. Talking the size of a grape fruit! We hit a huge bump in the road our last trip out in WV. Is it possible this broke a belt or is this just maybe a bad spot in the tire? Also we load this thing right up to it's limits. It's a 06' Montana with 2-6,000lb. Dexter axles. Last time we went out with the trailer it weighed in at almost 13,700lbs. There was about 5,800 on the back axle & 5,550 on the front axle. So right up close to max axle weight. Most E tires are rated for 3,550lbs. should I bump up to an F rated tire or am I good to go with the E's?
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Old 09-16-2019, 08:34 AM   #2
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What size? Im guessing ST235 85R16? If so go get a set of LT tires. Michelins are great, but BFGoodrich also get great reviews at a lower cost.
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Old 09-16-2019, 08:38 AM   #3
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What size? Im guessing ST235 85R16? If so go get a set of LT tires. Michelins are great, but BFGoodrich also get great reviews at a lower cost.
They are actually 235/80 R16 but I would like to bump up to the 85's to give it an added 1" in the back.
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Old 09-16-2019, 08:44 AM   #4
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Check out the Sailun S637 G tires, ST235/85/R16. You can get them online for less than $150 delivered and Walmart charges $10 for mounting. They are rated for 4000 lbs at 110 psi, so I run mine at 100-105 psi based on my load and daytime temp.
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Old 09-16-2019, 09:09 AM   #5
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Remember, most all ST tires have a low speed rating. LT tires will have a 99MPH speed rating.
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Old 09-16-2019, 09:12 AM   #6
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I ran Michelins XBS-RIBS on my Cougar which had 16" tires on the trailer. The XPS-Ribs are an all position LT tire that will sever you will. I used them for 4 years on my Cougar when I traded in the Cougar, they still look like new with almost no wear. I did have them balance when I installed them on my trailer.

The tire size I used was LT235/85R/16 tire with a load index rating of 120 at 80 psi which equates to 3,086 LBS each.

These tires will support the load of your trailer as weighed without any issues at all.
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Old 09-16-2019, 09:45 AM   #7
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Remember, most all ST tires have a low speed rating. LT tires will have a 99MPH speed rating.
Yeah I noticed the ST's are usually 75mph. I normally only run 65-70mph.
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Old 09-16-2019, 10:50 AM   #8
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I put Carlisle load range F tire on my Monty a couple of years back- I like them and would buy again.
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Old 09-16-2019, 10:59 AM   #9
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Ok something else... I have seen where some guys insist on metal valve stems. Are these best or is HD rubber just fine?
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Old 09-16-2019, 01:56 PM   #10
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They are actually 235/80 R16 but I would like to bump up to the 85's to give it an added 1" in the back.
What was the designated size of your trailer's original tires as shown on the vehicle certification label?

Lot's of fivers with OE tires sized ST235/80R16 on fivers with 6K certified axles have 32" axle spacing. That rules out using any tire sized 235/85/R16 - they are too tall.

The ST235/80R16 LRE tires are providing more than 15% in load capacity reserves for your axles. I'd find a brand I'm comfortable with and stick with that size. All of the newer ST tires, excluding Maxxis, have speed ratings at 75 MPH and beyond.
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Old 09-16-2019, 02:34 PM   #11
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What was the designated size of your trailer's original tires as shown on the vehicle certification label?

Lot's of fivers with OE tires sized ST235/80R16 on fivers with 6K certified axles have 32" axle spacing. That rules out using any tire sized 235/85/R16 - they are too tall.

The ST235/80R16 LRE tires are providing more than 15% in load capacity reserves for your axles. I'd find a brand I'm comfortable with and stick with that size. All of the newer ST tires, excluding Maxxis, have speed ratings at 75 MPH and beyond.
Every 06' Montana Model except mine came with 235/85's. Not being a smart a$$ but would .9" taller really be a problem? The axles have been flipped so I don't think they would rub in the wheel wells. Not heart broken that they would not work, but I just thought the added height would make it less nose high.
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Old 09-16-2019, 06:10 PM   #12
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Ok something else... I have seen where some guys insist on metal valve stems. Are these best or is HD rubber just fine?


Required for the psi, you can run a rubber base, metal stem on a 80psi tire, 2 piece metal stem for a 110psi tire...id skip the rubber ones all together
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Old 09-16-2019, 07:37 PM   #13
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Ok something else... I have seen where some guys insist on metal valve stems. Are these best or is HD rubber just fine?
I wouldn't have anything but metal valve stems. Almost impossible to put air into rubber stems at 110psi. They bend too easy imo.
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Old 09-16-2019, 07:57 PM   #14
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With 6,000lb axles load range 'E' is perfect. 16" Endurance and Michilen XPS Ribs are crazy expensive for sure.

There are more and more ST tires rated for speeds more than 65. That tells me they are probably built better than the 65 mph max ST tires.

I need new 16" tires on my 2013 trailer because of age. I am thinking I will buy a ST tire with a higher max speed and hope for the best
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