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Open Roads Forum  >  Fifth-Wheels

 > 5th wheel tires

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CALandLIN

SC

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Posted: 02/11/20 08:13am Link  |  Quote  |  Print  |  Notify Moderator

JIMNLIN wrote:

cal wrote:

The average consumer seeking replacement tires have no real reason to cross over to something different than what has been recommended by the vehicle manufacturer.

When looking around the net at the many rv and non rv trailering websites (dozens) just about every member that asks the same old question about a better replacement tire than his OEM tires is looking for a better tire.

There are no state/fed laws that enforces the tire placard or say we have to stay with the trailer mfg tire choices .
The tire placard is required by law for the vehicle mfg to list his tire choices . These choices have to be on the trailer at first retail sales.
After that the vehicle owner wants to upgrade the tires before making the first trip or replacing worn out/time out tires, he/she is under no legal obligation to use the same tire on the placard.

The only legal aspect would be if the owner for whatever reason gets weighed and the tires capacity doesn't meet the actual load on them then he may receive a over weight ticket.

IMO the tire placard is a good idea (a place to start) for those who don't have the experience or knowledge to choose a proper/safest tire for his/her tow vehicle or trailer.


There are no state/fed laws that enforces the tire placard or say we have to stay with the trailer MFG tire choices.

The tire placard is required by law for the vehicle MFG to list his tire choices. These choices have to be on the trailer at first retail sales.

There are mandates from NHTSA that help enforce FMVSS (standards). The following is a verbatim quote from NHTSA, it's in all vehicle owner manuals. There is no reason to not know about it.

"To maintain tire safety, purchase new tires that are the same designated size as the vehicle's original tires or another size recommended by the manufacturer. Look at the tire information placard, the owner's manual, or the sidewall of the tire you are replacing to find this information. If you have any doubt about the correct size to choose, consult with the tire dealer."

Remember, size has nothing to do with brand.

laknox

Arizona

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Posted: 02/11/20 09:04am Link  |  Quote  |  Print  |  Notify Moderator

JIMNLIN wrote:

laknox wrote:

FWIW, I just checked Discount Tire and their price for the R238 is =higher= than the same size Michelin XP Rib by a few bucks. Used to be t'other way 'round.

Lyle

I just ran the LT235/85-16 E on DT website.
XPS Rib ...281 bucks
R238 ......265 bucks

Simpletire.com shows the
XPS at around 265 bucks
R238 at around 250 bucks

Jeeze the first XPS Ribs I bought for a equipment trailer from DT was 148 bucks each....some years back.

I've read some replies from rv folks that DT won't install a LT tire on a trailer for all kinds of reasons. Both DT stores near me will install LTs on a trailer. Both store mgrs said DT corp left it up to the store owner for that decision.
Both of these store have lots of commercial and non commercial trailer customers so their well up on any legal/liability issues vs tire placard recommendations. I thought I knew "some" about this issue but one store mgr had much more input on a companies liability issues. He seemed ready to talk with a customer that knew something on the subject other than the tire placard sayz bla bla bla.


Maybe I wan't comparing like sizes. I =thought= I was...

I've read more than a few posts where DT, Costco or Sam's wouldn't install E LTs on trailers that called for E STs due to the difference in sidewall load numbers.

Lyle


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laknox

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Posted: 02/11/20 09:10am Link  |  Quote  |  Print  |  Notify Moderator

garyp4951 wrote:

GY Endurance RSA


Day-um! Looks suspiciously like an R238 for a =whole= lot more money! [emoticon]

Lyle

garyp4951

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Posted: 02/11/20 05:25pm Link  |  Quote  |  Print  |  Notify Moderator

When I go to 16" wheels, that might be one for me since I only have 4" clearance above the tires now.

ramyankee

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Posted: 02/11/20 05:49pm Link  |  Quote  |  Print  |  Notify Moderator

Our new Mesa Ridge has the Castle Rock, 225 75x15, looks like an E rated (sticker on side of 5th wheel says inflate to 80#). Guess that makes it a 10 ply. Unit now in storage so cannot check.
Should I feel nervous running the Castle Rock.


Rick and Patti ">
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Now living in North Idaho (formerly Northeastern California) ... but the heart is with MONTANA STATE UNIVERSITY

Cummins12V98

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Posted: 02/11/20 07:05pm Link  |  Quote  |  Print  |  Notify Moderator

ramyankee wrote:

Our new Mesa Ridge has the Castle Rock, 225 75x15, looks like an E rated (sticker on side of 5th wheel says inflate to 80#). Guess that makes it a 10 ply. Unit now in storage so cannot check.
Should I feel nervous running the Castle Rock.


Can you pronounce the parent companies name?

Personally I would replace with GY ENDURANCE “E” tires.

80 psi is a “E” tire.


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ramyankee

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Posted: 02/12/20 09:55am Link  |  Quote  |  Print  |  Notify Moderator

Cummins12V98 wrote:

ramyankee wrote:

Our new Mesa Ridge has the Castle Rock, 225 75x15, looks like an E rated (sticker on side of 5th wheel says inflate to 80#). Guess that makes it a 10 ply. Unit now in storage so cannot check.
Should I feel nervous running the Castle Rock.


Can you pronounce the parent companies name?

Personally I would replace with GY ENDURANCE “E” tires.

80 psi is a “E” tire.


Last year, the first of September, I put a set of Goodyear 10 plies on our old (just traded in) 5th wheel. Put them on just before a 1000 mile trip into and around Montana. Really did love the ride. Felt so solid. Now will have to do it all over again.
Due to cost, how would Carlisle compare to Goodyear? Probably would have thrown on a set of Carlisle instead of Goodyear had I known I could get them at WalMart..... Dollars matter it the two products are close in quality.

Cummins12V98

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Posted: 02/12/20 10:39am Link  |  Quote  |  Print  |  Notify Moderator

WalMart sells the ENDURANCE. Is the Carlisle a YSMade tire?

laknox

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Posted: 02/12/20 12:20pm Link  |  Quote  |  Print  |  Notify Moderator

Cummins12V98 wrote:

WalMart sells the ENDURANCE. Is the Carlisle a YSMade tire?


No, they're Asian-made. I had good luck with 2 different sets of them on my 11,360 GVW Komfort, though I ran E's when the placard specified D's. Running light, basically empty tanks/no food, ice, etc., I'd run 70-75 psi, but when loaded, I'd always run 80 psi. When I sold the Komfort, the tires were going on 5 years old and were starting to weather check a bit, but I'd've run them the rest of the year, myself. Of course, I'm pretty conservative and keep my speed < 65 and usually run 60-62. Tires were always covered and on boards in storage. As I said, I'll certainly look around when I need tires for the KZ, but I won't discount Carlisle, based on my experience with them.

Lyle

twodownzero

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Posted: 02/12/20 12:43pm Link  |  Quote  |  Print  |  Notify Moderator

ramyankee wrote:

Our new Mesa Ridge has the Castle Rock, 225 75x15, looks like an E rated (sticker on side of 5th wheel says inflate to 80#). Guess that makes it a 10 ply. Unit now in storage so cannot check.
Should I feel nervous running the Castle Rock.


It sounds like the term you want is "ply rating." The number of plies a tire has have long since been superseded by "load range" and "load index" ratings. The number of actual plies is irrelevant.

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