What do you guys air down to when you take your trailer/5th wheel to the beach/sand? I have a 25ft 5ver and am running Toyo 35x12.50R17 MTs at 55psi when towing. What's a safe pressure to go down to?

Thanks

 

So I guess nobody takes their trailer to the beach or thru sand.

 

I have yet to hit the sand with my truck and trailer, but I can't wait to try.

I'd drop to at least 25 on the truck and start at 30 on the trailer. Give that a try and adjust from there. That will be enough to keep beaded and give you some flotation. Could go lower if needed, but unless it is super dry sand, I doubt you will need it.

 

I have never done it personally, but I remember seeing guys doing it until the tires started to squat down from the lack of air, if that makes any sense...

 

As long as you don't break the bead go as low as your situation and driving style allows. I've run as low as 10 PSI in mine.....but I drive slowly.

 

I go to the desert regularly. Sometimes to Pismo and other times into the dunes at Gordons. I can say the only pressure I can confidently ride anywhere in the sand with is 10 lbs and sometimes slightly less. The bead will be fine as long as you don't go too fast or turn too hard. Also, the difference in performance between 25 lbs and 10 lbs is enormous. I also carry three onboard air compressors (1 for ebrake, 1 for airhorns, and the Oasis grand-daddy of all pumps) so filling back up will not take 30+ minutes per tire. The Oasis will do the job from 10 lbs to 80 lbs in less than two minutes per tire.

 

I have an onboard Viair 450C constant duty compressor and 2.5 gal air tank so I hope I don't burn it up trying to fill the tires. I tested out on the driveway and it took about 4 mins to fill one tire from 25 psi to 45 psi.