Good Sam Club Open Roads Forum: 80 PSI on Aluminum Wheels
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 > 80 PSI on Aluminum Wheels

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2112

Texas

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Posted: 11/01/17 05:41am Link  |  Quote  |  Print  |  Notify Moderator

I'm running 225/75/15 D rated tires on aluminum rims inflated to 65 psi. The only GY Endurance tires I find this size are E rated inflated to 80 psi. I do not know anything about these rims other than they are round aluminum objects.

Should I be concerned with airing up to 80 psi on these rims?

If I do go this route I will get metal valve stems.

Thanks


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dalenoel

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Posted: 11/01/17 05:53am Link  |  Quote  |  Print  |  Notify Moderator

Check with KZ and see if they can give you the rating for the rims they put on. With my old Jayco they gave me the rim manufacturer and I checked with them before using E rated tires. Mine were alright.


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Chris Bryant

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Posted: 11/01/17 06:03am Link  |  Quote  |  Print  |  Notify Moderator

You can run E rated tires at 65 psi and they will have the same load rating as the D rated tires.


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2112

Texas

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Posted: 11/01/17 06:28am Link  |  Quote  |  Print  |  Notify Moderator

Chris Bryant wrote:

You can run E rated tires at 65 psi and they will have the same load rating as the D rated tires.
Would this cause more sidewall flex and less stability? Granted this is a FW.
Any concern in a sharp turn being underinflated?

ford truck guy

Pennsylvania

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Posted: 11/01/17 06:29am Link  |  Quote  |  Print  |  Notify Moderator

You should pull off 1 of your tire/wheel assemblies.. Once off, look on the back of the wheel, possibly near the center for a stamp... MOST, if not ALL wheels will have a weight rating stamped into it that will tell you the rating...


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MFL

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Posted: 11/01/17 06:30am Link  |  Quote  |  Print  |  Notify Moderator

I would just buy from a manufacturer that makes a tire in the size/rating needed. There are several new style, cooler running, higher speed rated tires out there, that have been time proven, with good reviews. My FW came with 225/75/15 D rated Provider tires. They have been a great newer designed ST tire, with excellent reviews. Another choice, Carlisle HD. Both are good choices, available in your size, and D rating, at a better price than the GYs.

If you want the E rated GY tires, they seem to be getting good reviews from some early owners. Time will tell, I hope they will prove to be a quality ST.

Jerry





mike-s

Michigan

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Posted: 11/01/17 07:11am Link  |  Quote  |  Print  |  Notify Moderator

2112 wrote:

Chris Bryant wrote:

You can run E rated tires at 65 psi and they will have the same load rating as the D rated tires.
Would this cause more sidewall flex and less stability? Granted this is a FW.
Any concern in a sharp turn being underinflated?
No. Two otherwise identical tires, one LRD and one LRE, the LRE is going to be stiffer at all pressures due to the heavier belts/plys. And running within the load/pressure specs is in no way "underinflated."

JIMNLIN

Oklahoma

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Posted: 11/01/17 08:14am Link  |  Quote  |  Print  |  Notify Moderator

Quote:

Should I be concerned with airing up to 80 psi on these rims?

Yes...never overpressure a tire or a wheel. You have the wheels so look for a load and pressure rating or check with the wheel/trailer mfg. Some of the better 15" quality aluminum wheel mfg say the valve stem determines their wheel pressures up to 80 psi.

If the wheel shows a 2830+ lb load rating then its good for 80 psi.

If it shows a 2540 lb load rating its good for up to 65 psi.

Carlisle HD and Goodyear Endurance both are to be ran at max sidewall pressures.
Carlisle says to use max as part of the new tire warranty.

According to Endurance owners the tire is stamped on the sidewall "inflate to xx psi".

Check out the Providers. They come OEM on some mfg rv trailers now and have been OEM on commercial trailers since the '10-'11 era.


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goducks10

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Posted: 11/01/17 08:38am Link  |  Quote  |  Print  |  Notify Moderator

If these wheels are yours then they're good for 80 psi.
http://www.tredittire.com/wheels/altitude
Generally as RV wheels go 6-5.5-15" are rated to 2830 lbs which equates to 15" E rated tires at 80 psi.

Dennis12

Ridgeley WV

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Posted: 11/01/17 08:53am Link  |  Quote  |  Print  |  Notify Moderator

Don't go by a hundred answers here. Call the tire manufacturer or better yet e-mail them and you will have record of what they tell you. Fir instance, I run 300 psi in mine. Now are you going to run 300 psi in yours ???


Dennis Hoppert

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