Air Pressure recomendations for Sailuns

[bigdob24]

I replaced my towmax with Sailuns and while they are rated for 110 psi the tire dealer that installed them says 80 psi is what they recommend .
They say at 110psi they will crown and wear in the middle.
Im thinking 90-95 psi .
Any thoughts on proper air pressure ?

 

[BigJim45]

My thought on proper PSI

Check on the side of the tire. That's what the Tire Mfg has tested the tire at.

If it says COLD psi 110 then that's it.

 

[MCTalley]

We roll on our Sailuns between 105 and 110. So far haven't noticed any center wear. Used to run the same on our last rig with our Goodyear G614s with no noticeable wear down the middle.

 

[Jim.Allison]

http://www.goodyearrvtires.com/pdfs/rv_inflation.pdf

The Sailun is supposed to be equivalent to the G614, in the absence of an inflation table for the Sailun, here is an image of the inflation table for the G614. The image quality is poor, so I have included the link to the page where this table is listed. There are several tables so you will have to hunt for this one.

Your tire person is WRONG on the 80 PSI. At 80 PSI the Sailun is less capable than the Towmax you replaced. You should be running in the 105 110 PSI range, if in fact the Sailun and the G614 are the same construction.

I printed the inflation table for my G114s and taped it to my basement door for reference.

 

[danemayer]

Your BC 3070RE has a GVWR of 14,000 and probably has around 3,000 lbs sitting on each wheel (maybe a bit less), but because weight is not evenly distributed, you might have significantly more on one or two wheels. Absent individual wheel weights, let's assume 3,300 lbs on at least one.

Looking at the Goodyear inflation chart, 80 psi would support 3,042 lbs. To get to 3,300 lbs, you'd want 90 psi. If you add a bit of safety margin, you might go up to 100 psi and a carrying capacity of 3,550 lbs per wheel.

If you can get individual wheel weights, you'll have a better idea of where you need to be. In the meantime, I'd suggest 100 psi and keep and eye out for abnormal tire wear.

Can you use the Goodyear chart with confidence on a Sailun tire? I don't think the construction is quite the same. Goodyear uses steel from bead to bead whereas the Sailun documents don't claim that. But I think that's for protection against curb hits, not for carrying capacity. Nevertheless, the max 110 psi weight rating of the Sailun is the same at the Goodyear G614. It seems reasonable that you could assume the carrying capacity at lower inflation levels is similar.

 

[justafordguy]

I run mine at 110 and show no uneven wear.

 

[MagnoliaTom]

I run mine at 110 and show no uneven wear.

Same here with mine

 

[bigdob24]

Thanks for the opinions.
I will be increasing it to at least 100psi
Thanks
Dan

 

[sjandbj]

I have kept mine at 110 psi. I don't know what the weight is at each tire yet but at the higher pressure I know that they will not be underinflated. Also it might cause a little more wear in the center if they are over inflated but I will be replacing them due to time long before the tread is gone.

Steve

 

[Geodude]

I also run my Sailuns at 110 PSI. So far they are wearing evenly.

 

[bigdob24]

I spoke with the distributor of the tire and he recommended something higher than the 80psi the installer recommended also.
I just inflated them to 106psi and reset the perametors on my TPMS .
Will be taking it out in about a week or so for the first run .
Have to recheck the lugs at 50 miles and I'm good to go.
Thanks for all the input
Dan

 

[Hockster]

The builder tag on the side of my Big Country calls for 110# of Air for my Sailun Tires which my trailer came with.
That is what I run, and have never had a problem with my tires is almost 6 years of use.
Hockster

 

[bigdob24]

Hockster
Thats good to know, don't know why I didn't look at that last week when at my dealer;-)

 

[danemayer]

Inflation recommendations for 15,500 and 16,000 lb trailers probably aren't perfect for a 14,000 lb trailer.

 

[jmgratz]

Look at the sidewall of the tire and you can see the max COLD inflation. Be sure to don't go too low.