Factory aluminum rims OK when going to load range E 80 psi from original D at 65 psi?

[Cappeter]

Obviously not exceeding the rim max loads - do you change the valve stems to a “high pressure” Maybe I’m over thinking the change over. What have those of you done when going to the 80 psi tires??

[Rickeoni]

You should be fine with the addition of metal stems. Here is a link to the wheel maufacturer site. Sendel Wheels

[Wood Chip]

Originally Posted by Rickeoni

You should be fine with the addition of metal stems. Here is a link to the wheel maufacturer site. Sendel Wheels

Hmm,Todd at ORV had told that the wheel make was Tredit tire which then I called to ask about the max PSI on that rim. I suppose they are using multiple manufacturers

[Rickeoni]

Originally Posted by Wood Chip

Hmm,Todd at ORV had told that the wheel make was Tredit tire which then I called to ask about the max PSI on that rim. I suppose they are using multiple manufacturers

Tredit tires is a supplier of tires and wheel assemblies to RV manufacturers, I believe they have exclusive rights to Goodyear endurance tires. Sendel is the wheel distributor for the wheels used in the combo. ORV, like any RV or car manufacturer buys wheel and tire assemblies. Also tredit no longer list the O.E. ORV wheels on their website.

[Cappeter]

Per my odrv documention I have Tredit aluminum wheels and gy marathon tires 15 inch 225 at 65 psi max. Looking to change to E tires with 80 psi max

[Cappeter]

Woodchip-what did Tredit say about 80 psi on the factory 5x4 1/2 aluminum rims?

[yeloduster]

Even if you put tires on your RV that have a higher load rating and thus a higher max pressure does not necessarily mean that you will want to put more air pressure in them than you do now.

The tire should be inflated to the pressure specified by the tire manufacturer for the load on the tire.

See this Goodyear chart: https://www.goodyearrvtires.com/pdfs/rv_inflation.pdf

Note that even if the max pressure on the ST225 75R15 is 80 PSI the recommended tire pressure is related to the load on the tire. Have your fully loaded trailer weighed and inflate according to the chart for your tire brand.

Too little air and the tire will tend to run hot and could lead to tire failure. To much air you might wear the tire prematurely in the center. Too much air also makes the ride hard which will add to vibration damage to your trailer.

It is a balancing act you should work to get right.

This may not answer your question directly but if your load says you should load to 65 PSI with your new tires the rating on the wheel becomes moot.

PS: Often wheels have the max load and or the max pressure stamped on the back side of the wheel and sometimes on the inside of wheel. If it is inside you would need to dismount the tire to see it.

[Cappeter]

Thanks yelp duster- l had some understanding of the tire pressure relating to load You confirmed what I was not sure off - the actual tire pressure should be matched with load - I have been running all my tires at maximum - 65 on trailer and 80 on dually ram truck. The 65 was a good match on the trailer. 24000 miles and even wear. Actually the tires have no real noticeable wear. However on my rear dually tires I see center tire wear at 30000. I have weighed my setup and it looks like the 80 psi in the rear dually tires is more than required hence the center wear. I believe I will get new metal stems for my new 80 psi tires and use the tire inflation charts in the future

[Wood Chip]

Originally Posted by Cappeter

Woodchip-what did Tredit say about 80 psi on the factory 5x4 1/2 aluminum rims?

I was specifically calling about my wheel combo which is E rated tires and 16" wheels. I was more curious than anything else but they did say my combo with that wheel was rated at 80PSI. I had heard on the forums that some makes and models of RV's had 110 PSI rated rims even though they had 6000 lb axles and E rated tires.

[brulaz]

My 15" Sendel rims and the OEM steel spare have all been filled to 80psi for many miles and rough roads. No problems.

I did put steel valves on for the TPMS.

[Cappeter]

Brulaz- is that Sendel 15 aluminum? I get the OEM spare is steel.

[brulaz]

Originally Posted by Cappeter

Brulaz- is that Sendel 15 aluminum? I get the OEM spare is steel.

Yes. It's the 15" standard alloy wheel ORV was putting on it's trailer back in 2013 or so.

Have heard of some steel wheels that cannot take 80psi because of the welds, but have never heard of a standard alloy truck or trailer wheel that couldn't. Usually they're rated by weight, not psi though.

[Rickeoni]

From the Web page.

[Cappeter]

Rickeoni - Thanks those are 16 in wheels but I believe the general consensus is that 15 in aluminum alloy can handle the 80 psi tire - my weight 7000 lbs probably will not require 80 psi loading but my concerns have been put to rest. Thanks to all!