CONFUSED the local trailer company is telling me to run the recommended tire pressure on the side of my 12 inch tires which is 80 lbs max. They said it will stop the trailer from wagging side to side and the tires will run cooler . MINI TRAILER USA says 22-26 lbs . this is a shadow trailer that is 200 lbs empty and has torsion axles leaving on a 2 week trip tomorrow and it is my first time towing a cargo trailer with my 2008 ultra. Any help from people who tow would be very helpful !!!!

 

Like your bike, car or truck,, tire pressure is a variable depending on the load the tire is carrying.
80psi for that tire is for "max load", a class C - 12" tire has a max load capacity of about 1000#.
Your trailer weighs 200# with a max storage weight of 400#,, that's 600# total,, far under the tires max load capacity.

Get a magnifying glass and read the print on the tire again.
I don't know how the manufacturer is coming up with 22-26psi for a class C tire that's as silly low as it is using the max load psi.
I'd call the manufacturer customer service and ask to talk to a manager, explain you have class C tires on it.
And I would defiantly log a few 100miles towing the trailer with some weight in it before leaving on an extended trip.
If you can load the trailer and hitch it something else to tow it,, it would be nice to follow along behind the trailer and "look" at the tires as it's being towed,, know what I mean?

 

I tow a lot. I run close to the pressure it says to on the side of the tire. If the load is light, you can go down a bit, but 22-26psi seems foolish to me.

I have a pop-up tent camper trailer that uses 12" wheels. 80PSI is what it says on the sidewall. Those little wheels spin a lot faster than your truck tires.

 

found decal on frame how does 47 lbs sound ? trailer only about 300 when loaded. no time for test run leaving nj for sturgis in am. tounge weight around 20 25 ? THANK FOR THE INFORMATION AND THE TIME TO RESPOND

 

Go by what is says on the sidewall of the tires not what's on the trailer frame.

 

I run radials at 35 PSI. No problems.

 

With trailer tires you're supposed to run the max psi. C = 50psi, D = 65psi and E = 80psi. I find it odd that you have an E rated (80psi) tire on that small of a trailer. I would think it would be a C at the most. I don't even think you can buy E rated tires in a 12" size. Anyways if they in fact say to run 80psi on them I don't know if I would simply because if you have a blowout 80psi is like a bomb going off. Plus a tire that small would be like rolling around on round bricks they would be so hard. I'd probably run 50psi in them and call it a day

 

30-35lbs will be alright... To much air and that little trailer will bounce all over the place. Tongue weight should be about 10% of your load. I would follow the trailer manufacturers recommendations.

 

You don't want to have them under inflated,they can heat up.
80 sounds pretty high if the load rating is not met.
I would try 50-60 with the weight you plan to carry.Take it for a test ride.

The trailer is not gonna bounce with a load in it.
Swaying is due to incorrect load placement or the tongue length is not correct.

My trailer tires(scooter tires) are marked 36 lbs. cold.Thats what I ran.
On my trip last week,the weight in the the trailer was probly 200-250.
No bouncing or swaying.

You will need to figure out the best tongue weight.

 

THANKS for those who responded. I will try 40-42 and 20lb tounge weight...