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Old 11-11-2014, 08:20 AM   #1
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New Tires for a 15,500lbs. Fiver

I currently have Tow Max tires on my new 15,500 pound fifth wheel. They are 23585r16's. There are two axles rated at 7000 pounds. So I need tires rated for at least 3500 pounds. The only ones I've found are Goodyear G614's. Are there any other reliable options?
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Old 11-11-2014, 08:29 AM   #2
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Your axles have nothing to do with the tires you need. How much trailer weight do you have on the tires??????
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Old 11-11-2014, 08:42 AM   #3
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Old 11-11-2014, 08:46 AM   #4
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Your axles have nothing to do with the tires you need. How much trailer weight do you have on the tires??????
GVWR 15,500. Trailer loaded and hooked up to TV, 12,090 pounds. I don't know the per tire load but based on the floor plan I would think one side carries about 10% more weight than the other side.
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Old 11-11-2014, 08:49 AM   #5
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Your trailer may have a gross weight rating of 15.5k, but about 25% will be on your truck bed (pin weight). That being said, the biggest problem with Chinabombs is that they are seldom as new as the trailer they are put on, and ST (trailer) tires degrade faster over time than LT (truck) tires no matter if they're kept inside or not. Look at the 'born on date' on each tire (required by DOT for all tires sold in the USA and if they're anywhere near 4 years old, I'd replace them. You should get at least the same load rating (E?) replacement. I went with LT tires (Firestone Transforce) and have had no problems at all with them. Others swear by G614's, but they are really expensive, and will still age out over time - 5 years is the recommended change out age and some tire companies won't even repair one over 8 years of age.
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Old 11-11-2014, 10:15 AM   #6
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Your axles have nothing to do with the tires you need. How much trailer weight do you have on the tires??????
The minimum standard for tire fitments is determined by the trailer's total GAWR. In this post I suspect the OPs trailer has GAWRs of 6750# - 6850# as set by the vehicle manufacturer.

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Old 11-11-2014, 10:21 AM   #7
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Originally Posted by Jhuff8181 View Post
I currently have Tow Max tires on my new 15,500 pound fifth wheel. They are 23585r16's. There are two axles rated at 7000 pounds. So I need tires rated for at least 3500 pounds. The only ones I've found are Goodyear G614's. Are there any other reliable options?
Probably the best upgrade for your trailer is the LT235/85R16G tires. However, only the GY G614 is built in the USA and it's expensive and requires rims with a minimum width of 6 and a half inches. There are a lot of "off shore" manufacturers offering that tire and many of them will fit 6" rims.

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Old 11-11-2014, 10:38 AM   #8
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I have ran two sets of GY G's without even a flat with thousands of miles on each. One set replaced GY E's and I am sure the rims were 6" and had a rating of 80psi. I ran them for 5 years at 85psi with perfect tread wear.

They are expensive but ya get what ya pay for.

They are the only ones that will pay for damages.
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Old 11-11-2014, 01:39 PM   #9
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Dig into the specs on Tire Rack's LT245/75-16 range of tires(that's a 'normal' LT replacement size. You will find under the Specs for a specific tire a fairly long list of other tires of the same model series - note that not all listed are LTs, so be cautious. When you are looking at those specs, you will find LT265/75-16 are generally within 1/2 to 3/4 inch of the originals and are rated at 3415#. There are a couple caveats - cross section is somewhat wider and the wheel width may not fall in the optimum range. Here's a Michelin page just to look at:http://www.tirerack.com/tires/tires....=yes&tab=Specs

The Tow Max junkers that we have on our 2014 Montana were made in Jan 2013 therefore almost 2 years old and with only 4-5000 miles on them are IMO, ready for replacement before next summer's travels. These tires are supposedly rated at 3450# each - in my dreams. Nice looking tires, only 10/32nds tread new vs 12 to 14/32nds on an LT, but have been a real problem for many RV owners. Oh and Sailun Tire - made by the same manufacturer as Tow Max though that may not necessarily be a condemnation of that line
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Old 11-11-2014, 03:25 PM   #10
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I paid $195 (after a factory rebate) for Bridgestone Duravis R250's at Costco. They're comparable to the Michelin rib tire, and they're awfully heavy duty. I cannot recall hearing any complaints on this tire. And they're substantially cheaper than the G614 Goodyears or the Michelins.
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Old 11-11-2014, 06:19 PM   #11
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Old 11-11-2014, 09:41 PM   #12
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I have lt23585R/16 tires on mine. The goodyears ? had blow outs in the first 3 years. I have run Michelin, Bridgestone and Kirkland about 25,000 miles and 4 years each with no problems. My current Bridgestones are over 5 years old and I am probably pressing my luck because of age.
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Old 11-13-2014, 12:28 PM   #13
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Am I just being paranoid putting out $2000 to replace brand new tires? I know a lot of people post about their problems with Towmax tires but obviously no one posts about the problems they don't have.

This is what I believe is the date code on the tires DOT ADB2 GPB 2314. How can I tell when these were made?
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Old 11-13-2014, 12:33 PM   #14
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This is what I believe is the date code on the tires DOT ADB2 GPB 2314. How can I tell when these were made?
23rd week of 2014

http://www.tirerack.com/tires/tirete...jsp?techid=11&
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