Safe for 14Ply on this Aluminum Rim?

[RottenRalph]

I want to replace my current 10Ply tires with 14PLY Sailuns. The rims do not show to have a max PSI but do show a max weight capacity of 3860 lbs.

Have any of you done this? What PSI did you run?

Thanks for any comments.

[RottenRalph]

https://www.irv2.com/forums/attachme...1&d=1649374322

[Ray,IN]

Aluminum cast rims have the max. inflation cast into the back side of the rim. I also upgraded to higher rated tires. You don't need to inflate to higher than your OEM tires just because of a higher ply rating.

[RottenRalph]

Originally Posted by Ray,IN

Aluminum cast rims have the max. inflation cast into the back side of the rim. I also upgraded to higher rated tires. You don't need to inflate to higher than your OEM tires just because of a higher ply rating.

Thanks
Typically I would agree that the max PSI would be stamped but not on this rim.
I pulled it off the axle just to get that info but it's not there unless it is listed as something other that PSI or BAR. [ATTACH][/ATTACH]

[JDT]

What I would probably do is look at the max inflation for the current tires and assume that would be the limit for rims, just to be on the safe side. Then I would find the Sailun inflation and load chart and see what psi it takes to get to the 3860 load capacity for the rims and compare it to the original tire max inflation.

[TXiceman]

It may have the data stamped on the outer edge of the rim. It may also have a load rating stamped rather than a pressure.

With your trailer are you sure you need a G rated tire?

Ken

[RottenRalph]

Originally Posted by JDT

What I would probably do is look at the max inflation for the current tires and assume that would be the limit for rims, just to be on the safe side. Then I would find the Sailun inflation and load chart and see what psi it takes to get to the 3860 load capacity for the rims and compare it to the original tire max inflation.

Good idea. Using there chart, it looks like 90PSI is the recommendation for 3860 lbs

[RottenRalph]

Originally Posted by TXiceman

It may have the data stamped on the outer edge of the rim. It may also have a load rating stamped rather than a pressure.

With your trailer are you sure you need a G rated tire?

Ken

Thanks Ken

I have looked up, down, left and right with my 2.5 power old man reader eye glasses and don't see anything that suggest PSI or Load rating. This surprises me as I think I am familiar with tire and rim capacities.

To your question about G rated tires: I really don't think I need a G rated tire but don't have the warm fuzzies with most E tires. The current set of Goodyear Endurance seem to be ok but I have a small chunk missing out of the center of one. Date code is 1218.

These may be great tires but I prefer RIB tires for trailers.

[JIMNLIN]

I see the Jayco Eagle 321 RSTS has a 12700 gvwr and 6k alxes depending on year models.
Even with 6k axles = 3000 lbs load per tire.

I went with a LT235/85-16 E tires @ 3042 lbs capacity or 12168 lbs for four tires on 5.2k-6k rv and non rv trailers axles. My actual scaled wheel loads on a 1984 5th wheel trailers 6k axles was around 2680-2880 lbs depending on how we loaded the trailer. Ran the 1st set 55k miles/7 years.....52k miles/6 years on the 2nd set with no issues.

You can go with a commercial grade all steel carcass LT235/85-16 E like the Michelin XPS Ribs or the Bridgestone R-238....if your trailer has 5.2k-6k axles.

Going with a ST235/80-16" G tire @ 4080 lbs capacity or the ST235/85-16" G at 4408 lbs capacity don't make cents/sense on that size trailer.
For 6k axles thats a huge 50 percent reserve capacity that the trailer can never use.

[Toby Dog]

The aluminum wheel pic with the steel center cap still installed triggered a memory.
Get those things out of the wheel while you still can. They go on from the back and seize in the wheel. That means you can't put them on a tire machine.
I have those same wheels on our 5er and while doing a brake job got rid of them. It took a lot of pounding with a mini sledge to get them out, destroying them in the process. A bonus is now I can check the hub temps with a finger on stops. I do have a temp gun but a finger is easier to find.

[bookemdanno]

If you’re still looking for the stamp, mine was stamped on the rim inside the tire.

[kdauto]

I did this last year. Trailer came with 8 ply tires originally, a tad on the limit, and I had been running 10 ply for several years now. I upgraded to 14ply G rated Sailuns. I could not find any max inflation pressures on the wheel anywhere, inside, outside, stampings nor stickers, but I do have a maximum load rating stamped. I would not be afraid to run 100psi on your wheel set but it won't give you much, because I would not recommendexceeding the max load per wheel at any time. 85-90psi max if you're really loaded or if you like a rough riding trailer. It would take a LOT of pressure to damage or crack a rim vs all the forces generated on a wheel/rim running down the road, hitting potholes and bumps and skid steering in tight corners.

[Edd505]

Find your wheel and call the manufacture, mine were Lionhead they had me send a picture to confirm which wheel I had:


https://www.tredittire.com/wheels/


https://lionsheadtireandwheel.com/wheels

[Mjeronimo]

Can’t zoom in clear enough - on the backside of spokes looks like there is lots of stuff stamped on there.