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Old 03-21-2016, 09:55 AM   #1
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D rated 14" tires

Any thoughts on D rated 14" Taskmaster RT tires for a 23 FB?
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Old 03-21-2016, 10:12 AM   #2
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Tires are one of the hot button issues on this Forum.

Generally, the majority opinion is that all Chinese tires are unreliable as are Goodyear Marathons (although they have worked fine for me). Michelins are the strong favorite.

There are thousands of posts here on the subject and no real consensus so you are kind of on your own.

I have never heard of the brand you mentioned but that means nothing -- what do I know?

Tire Rack reviews might be a good start.

Mike
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Old 03-21-2016, 10:27 AM   #3
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N29 said it well. Hot topic

I have Maxxis LRD and am happy with them.

Check your tires load limits and compare them to your GVWR for the trailer. Make sure you have some extra cushion there, keep them aired to the max on the sidewall and inspect them regularly.
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Old 03-21-2016, 10:49 AM   #4
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Got rid of the stock 14" wheels and GYM tires on the dealership lot before even hooking up to the new 2015 23D International Serenity with a 6,000 pound GVW. They were replaced with:

Michelin LTX (P) 235/75R15 XL load rated 2,183 pounds @ 50 psi but derated to 1,985 pounds for trailer use. Diameter is 28.9" 4 x 1985 = 7,940 pounds 4 x 2,183 = 8,732 pounds. Run at 44 psi.

SenDel T03-56545T wheels 15x6 - 5/4.50 bolt circle - zero offset - 3.19 center bore 2,150 pounds at 60 psi Reused stock stainless steel center hub.

Centramatic wheel balancers #200-221 standard part

McGard 24138 Chrome Cone Seat Wheel Locks and McGard 64010 Chrome Bulge Cone Seat Style Lug Nuts (1/2" - 20 Thread Size)

Dill TPMS #1506 - 453 valve stems & #1900 crystal monitor

Used these same model and size Michelin tires on our 2013 25FB International Serenity that had a GVW of 7,300 pounds.

On individual wheels scales, the weights fully camping ready were:

Tongue………928
Front….1,280……1,246 - total front axle 2,526
Rear…..1,376……1,233 - total rear axle 2,609
Total Axles………………………………….5,135
Total Trailer….6,063

So there is more than adequate load capacity with these Michelin tires on the 3,000, pound rated axles. The Michelin LTX (P) 235/75R15 XL maximum load capacity occurs at 41 psi, so higher pressures help stiffen the side walls.
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Old 03-21-2016, 11:45 AM   #5
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The tire discussion does have a consensus. It is the Michelin LTX in a 15 inch size. The 16 does not fit on the 23. The folks who have had good luck with ST tires have not had a blowout. The folks who have moved on, either have had a blowout or are not willing to risk that event. Scare tactic. Maybe. Most safety decisions are driven by that logic.

Neighbor did extensive investigation and found the Kumho STs to be what he feels is a good alternative for his boat. I went home and found a couple of folks who were not satisfied with the performance of that tire. ST tires are problematic. They seem to be a price point tire designed to different boundary conditions. Passenger and light truck tires are designed to what is assumed to be more rigid parameters from a safety perspective. Passengers hire legal representation a bit faster than trailer payloads do and that may be the reason for such a perception.

The Kumho is not limited to 65 mph like the GYM. The Maxxis is another tire that is respected. There are choices in the ST world.

The primary argument for the ST choice is weight capacity. The Michelin capacity is more than sufficient for the 23. What is a viable consideration is cost. The conversion to LTX XL P tires is about $1600 if you go with a like spare and Centromatics. A new set of ST tires cuts that investment considerably and can be quite reasonable depending on the brand of choice. One approach to ST use is to replace tires on a more frequent basis. Unfortunately, some have reported first trip failures. Regular inspection may be another option. Radial and lateral run out are reported to be an indication of belt separation.

Your question is "what about X" and that presents a problem. It is not going to be easy to give you statistically valid data on a tire does not appear to be widely in use. So, I suspect you are on your own. But then, I'm not sure that we have statistically valid data anyway.

Good luck with your choice. Pat
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Old 03-22-2016, 09:52 AM   #6
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The tire threads here and other RV sites are full of personal negative experiences with the ST tire world products. These are made to the lowest possible cost point. The RV manufacturer is only concerned with getting the trailer down the assembly line, out the door and released from production. At that instant, the dealers line of credit gets charged and the tire issues are the dealer's problem.

Based upon my personal experience with inside knowledge of the driver's departure time from Jackson Center and his arrival time in Mesa, AZ, I know that those ST tires were run much faster then their 65 mph speed limited rating. These hotshoters have a motive for quick delivery for the next load.

I had to pay to get the interior damage created by the wild ride to the dealership at a third party repair facility. From prior dealer experiences, I wanted the repairs done correctly the first time with no secondary damages done in the process or the trailer returned absolutely filthy.

I have not had a failure in a Michelin tire on any of my trucks or cars (and they were all converted to Michelin if they did not come with Michelin tires as soon as I got the vehicle off the lot) in nearly fifty years of driving.

My tandem motorcycle came with ST tires and I tried them for awhile, but within a year, there was a failure. I have a single rail motorcycle trailer that got used less than once per year and the spare ST tire literally delaminated even though it was covered. It now has 13" Michelin tires with no issues.

I see Michelin tire cost on the Airstream as preventative maintenance and insurance against a major repair from a blowout or other tire failure. The single most important criteria is not even getting close to the maximum tire load rating on the 15" passenger Michelin LTX (P) 235/75R15 XL tire with a derated capacity of 1,9893 pounds. Even with the 2013 25FB International Serenity, the actual individual tire loads camping ready were under 1,500 pounds per tire. camping
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Old 03-22-2016, 10:20 AM   #7
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Quote:
Originally Posted by bobgoldstein View Post
Any thoughts on D rated 14" Taskmaster RT tires for a 23 FB?

Apparently no one can actually answer your question. I also would appreciate any information on the tires in question.
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Old 03-22-2016, 11:59 AM   #8
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This is the promo quote from the video on the Taskmaster tire.

"Today we're going to review part number TTWTRTM2157514D this is the Task Master ST215/75R14 Radial Trailer Tire in a Load Range D. This radial tire is ideal for boat trailers, stock trailers, utility trailers and campers. It is constructed with a double steel belt and double polyester cords for a long life. They are great for highway use. They also use the tread wear indicators which you'll see on a lot of passenger car and light truck tires. They are starting to put them now on the trailer tires. Tread wear indicators, if you look at the corner or the shoulder of the wide wall, there's a little triangular pointing up and they are about every 12" to 15" around the tire. What that means, it points toward the top of the tire, if you'll notice right where that arrow is there's a tread depth indicator, it's like a rubber speed bump in each tread groove."

They say it's good for 81 mph and has a 65 psi pressure range. Pat
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Old 03-22-2016, 12:49 PM   #9
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Quote:
Originally Posted by bobgoldstein View Post
Any thoughts on D rated 14" Taskmaster RT tires for a 23 FB?
I could not find a load range D 14" Taskmaster tire.

Load range C was all I could find.

Doesn't the 23' FB come with GYM ST215/75R14 LRC tires on 3,000lb axles? There is no need for load range D tires on a 23FB.

I would use these-
http://www.tirerack.com/tires/tires....NCO8&tab=Sizes
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Old 03-22-2016, 05:53 PM   #10
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The kumho 857 14 in referenced in the post above are D rate tires. They are not ST but a European spec tire which the C stands for commercial use.

I believe that tirerack will show the details about the tire.










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Old 03-31-2016, 08:10 PM   #11
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What tire company makes the Taskmaster? The first 2 characters of the DOT serial can be checked HERE.

If we knew the tire company then search of NHTSA tire complaint list might give some idea about the tires they make.
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Old 03-31-2016, 09:37 PM   #12
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Where are you folks finding this sized Michelin. The Michelin web page does not even list the LTX in the size suggested?? I'm getting a new FC 28ft and would like to replace with Michelins.
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Old 04-01-2016, 11:03 AM   #13
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The 28' with a GVW of 7,600 pounds could be a better candidate for the 16" Michelin LT225/75R16/E LTX M/S2 tires that the factory installed on both the 25' and 27' Eddie Bauer models and now the new 27' Pendleton and 2015 and later Classics.

I would expect the loaded 28' trailer would have an axle load loaded under 6,200 pounds (based upon our 25FB with a GVW of 7,300 pounds having 5,800 pounds on the axles fully loaded) which would average 1,550 pounds. However, the curb side rear tire on many FB models and our Classic carries the heaviest load when weighing the tires individually. Our 23D has the street side rear with the heaviest load by nearly 100 pounds.

Our 23D numbers

Tongue………928
Front….1,280……1,246 - total front axle 2,526
Rear…..1,376……1,233 - total rear axle 2,609
Total Axles………………………………….5,135
Total Trailer….6,063

The 15" Michelin LTX (P) 235/75R15 XL tires I installed on the 25FB and the 23D are being replaced with a new "Defender" series with slightly more load capacity. They are supposedly showing up in April or May 2016.
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Old 04-01-2016, 11:27 PM   #14
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Quote:
Originally Posted by bobgoldstein View Post
Any thoughts on D rated 14" Taskmaster RT tires for a 23 FB?
I would listen to switz, before some short posts and odd brand tire options.

The GYM 14" tires on my 2006 23 foot Safari. These C rated GYM 14" tires are poor excuses for Airstream to even consider. Even though Airstream says the 23 foot does not need 15" wheels and D rated ST tires... do it. These 14" Marathon tires are accidents... not waiting to happen... but will happen. Hold up a GYM 14" and a Towmaster 14", or just weigh them. I would expect the Towmaster to have more rubber on the ground.

Costco sells a 14" Greenball Towmaster. They fill them with nitrogen and C rated. I used them on our 23 foot trailer with no problems. Costco stands behind their products and will not nickel and dime you if you have a legitimate issue with their tires.

If you decide not to keep the 14" wheels, there are 15" wheels that will fit the five lug nut pattern. The wheel guys can tell you what they are. A Towmaster 15" D rated tire would suit me just fine. Tow Max was another brand that did me well.

The 15" Goodyear Marathons on our 2014 25' International did not give me any problems. Because of my experience with the 14" Marathons... I am not about to take a chance these will fail me when I am in nowhere and up a creek...

I have never heard of your brand. That should tell you something. 'Hi Run' was a 14" tire that did not survive 300 miles before I had to replace them from tread separation.

If you are a Costco member... Towmaster 14" did me well. After 50% to 60% of tread wear... I replace them. A flat tire from a puncture with worn tread is not noticed until you have destroyed the tire in some cases. Aluminum damage will cost you more than an entire set of five wheels and tires!

Finding a 15" wheel and D Rated trailer tires is the ultimate option.

Stay away from... CHEAP. You will be disappointed sooner, than later. There is a tire worse than the 14" Goodyear Marathons.... Hi Run made in China. They look good when NOT on your trailer. Once installed... you will be blamed for overloading your trailer and having their tires decompose over a short distance is never... the tire's fault.

If I had a 4x4 pickup worth $2000... I would not hesitate to put the best tires money can buy on it, even if they cost half of the value of the truck. Same with your trailer. I only am familiar with four brands of 14". Two worked out well, but nobody at the time even mentioned them. The other two, Marathon 14" and Hi Run 14" are not worth putting on a swing set attached to a tree branch....
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