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Open Roads Forum  >  Fifth-Wheels

 > trailer wheel weight rating/compared to tire psi rating?

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jaycocamprs

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Posted: 03/16/22 07:41pm Link  |  Print  |  Notify Moderator

Dexter 6 lug on 5.5 are rated for 2860. Their 16" wheels were what I used when we upgraded from the stock 15" on the last trailer.


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bucky

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Posted: 03/17/22 04:21am Link  |  Print  |  Notify Moderator

MFL wrote:

[image]

My 6-bolt wheels on 5200 lb axles with oem 225/75R 15 D-rated 2540 max wt tires. My wheels are steel and are marked 2,600 max weight. My FW GVWR is 12,110, which would mean 10K max on tires/wheels. I have a 4K CCC, so FW never loaded to GVWR. I am thinking not much more than 8,500 lbs on tires/wheels most times.



Jerry


"I am thinking" ??????????
I'll take the high road on your other comment.


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JIMNLIN

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Posted: 03/17/22 04:50am Link  |  Print  |  Notify Moderator

jaycocamprs wrote:

Dexter 6 lug on 5.5 are rated for 2860. Their 16" wheels were what I used when we upgraded from the stock 15" on the last trailer.

X2..... on upgrade to 16" wheels on my 11200-11400 lb 5th wheel trailer. The rv dealer just mounted 4 new ST225/75-15 D Marathons/5200 lb axles. Made a couple of 500 mile round trips to a camp area. The trailer wobbled around like a drunk hog on ice.
Bit the bullet and bought four 16"X 6 lug steel Dexstars which gave me many choices of 16" LT215/85-16 E tires selections for the trailer. I sold the 15" 6 lug wheels/new Marathon tires to a neighbor for her cargo trailer.


"good judgment comes from experience, and a lot of that comes from bad judgment" ............ Will Rogers

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MFL

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Posted: 03/17/22 05:44am Link  |  Print  |  Notify Moderator

bucky wrote: "I am thinking" ??????????
I'll take the high road on your other comment.

Good man bucky! I maybe over reacted, trying to keep my thread on track. It went sideways anyway, lots for Barney to clean up, but thread stayed open. Thanks Barney[emoticon]

Since I don't need more capacity, than my current D-rated Providers, I think I'll do more searching. If I can get the same, with fresh dating they will work fine. If the Endurance came in my size, D-rated to match my wheels 2600 load I'd get them, but they don't.

Jerry





MFL

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Posted: 03/17/22 05:55am Link  |  Print  |  Notify Moderator

Southwest Wheel
Wed 3/16/2022 2:56 PM
We do not know of a wheel rated for the E rated tires. Sometimes the tire guys forget to talk to the wheel guys. You might look for a DexStar Wheel, they will be more expensive, but they would be the only group we know of that might have this.


My question to southwest wheel was asking if their 15" wheel, item #128697 (which is same style, weight rating 2600 as my wheels) could be used with E-rated tires, inflated to 75-80 psi, but never exceeding 2500 lbs on any tire/wheel.

Jerry

Cummins12V98

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Posted: 03/17/22 07:44am Link  |  Print  |  Notify Moderator

MFL wrote:

bucky wrote: "I am thinking" ??????????
I'll take the high road on your other comment.

Good man bucky! I maybe over reacted, trying to keep my thread on track. It went sideways anyway, lots for Barney to clean up, but thread stayed open. Thanks Barney[emoticon]

Since I don't need more capacity, than my current D-rated Providers, I think I'll do more searching. If I can get the same, with fresh dating they will work fine. If the Endurance came in my size, D-rated to match my wheels 2600 load I'd get them, but they don't.

Jerry


I don't get it. ENDURANCE will do everything you want, simply air to your weights and carry on. As you mentioned you do the same on your truck so what's the difference?

I just changed from OE 4,805# @ 125psi GY's to Continental 6,005# @ 125psi. My actual weights are around 4,500#. So now with my new tires would you run them at 125psi or inflate to 100 that gives 5,200# capacity?


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Cummins12V98

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Posted: 03/17/22 07:50am Link  |  Print  |  Notify Moderator

Per GY Tech support

"when upsizing load range use the weight/inflation chart and add 5psi to what the chart dictates per your actual weights".

I personally discussed this when I went from GY "G" to GY "H" on my last Mobile Suites as I was at the upper end of the "G" tire load ratings. Seems I ran the "H" at 100psi or so for thousands of miles with perfectly even tread wear.

If they the tire manufacturer recommends the above I can't see why that is not ok for you?

MFL

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Posted: 03/17/22 08:46am Link  |  Print  |  Notify Moderator

^A truck tire at 4 corners of truck, with free running front, and differential on the rear is a different scenario than a tandem axle trailer. The light duty ST tires I use have much softer side walls than the HD J-rated tires you are using. An ST trailer tire, properly sized/rated, on tandem axle will perform best, least side scrub/sway, run coolest, at full sidewall capacity.

My ST tire edges, wear faster than tire center, at full psi, due to scrub. In any case, mine will age out (8 years of use now) before wear out.

Roger Marble, a very accredited tire engineer, former member here, has discussed ST tires in length on tandem axle application, and agrees with my thought on this.

It makes for good discussion, and many have differing opinions, concerning pressure of trailer tire, not truck tire pressure. You and I are not going to ever have the same opinion, partly because of the difference between our rigs, and the tires required to support them.

I value your opinion, recommendations most things, as I hope you do mine.

I know that JIMNLIN, a commercial hauler, for many years/miles somewhat agrees with what I am saying. I have always valued his opinion, concerning tires.

Jerry

Cummins12V98

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Posted: 03/17/22 11:19am Link  |  Print  |  Notify Moderator

"Scrubbing" think about it. Full weight on a tire at 80psi will have a lateral drag of a certain amount. Lighten the load and it will be less. Heavier duty tire with the pressure set to say 65 will not scrub anymore than the 65psi "D" tire. More weight equals more scrubbing along with softer tire sidewall of a "D" tire.

I highly doubt your outer edge wear is related to scrubbing and is more a case of the tire is simply not carrying the load to allow it to wear un evenly.

I know I won't change your mind but when one of the largest tire manufacturers says to use the chart when upsizing load range I have to believe it as so. They said to do so will give even tread wear, better stopping and better ride. I used their recommendation and it proved to be correct.

JIMNLIN has a lot of good info but remember he comes at this from a commercial haulers perspective.

I would like someone to explain whey they have weight inflation chart for the ENDURANCE if it's not ok to run tires pressures based on actual load.

I have the 14" "D" ENDURANCE 65psi tires on my Boat trailer. I have ran them since Summer 2017 at 50psi based on load. They have a perfectly even tread wear. I have ZERO edge wear from scrubbing. It get's "SCRUBBED every single day of the Summer on a chip seal rough surface.

* This post was edited 03/17/22 11:39am by Cummins12V98 *

CapriRacer

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Posted: 03/18/22 07:33am Link  |  Print  |  Notify Moderator

Cummins12V98 wrote:

.....

I would like someone to explain whey they have weight inflation chart for the ENDURANCE if it's not ok to run tires pressures based on actual load. ......


Those are MINIMUMS, not recommendations.


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