Kumho 857s, pressure?

EcoBullet wrote:

JIMNLIN wrote:
Unless you over tired the trailers axle rating and the wheels pressure capacity its advised to run the tires max sidewall pressure.

Please educate me. Where does this come from? Is it just a trailer tire thing? Sidewall on my truck tires say 44 lbs MAXIMUM, but door jamb sticker says 35 lbs.

What Larry says.
IMO tireman9 brings up a good point also in his rvtiresafety.com blog
In part;
"The manufacturers do not take into consideration the side to side unbalance, as to do so would require them to provide larger (more expensive) tires. The other thing RV industry does not take into consideration is the forces to the tire structure due to running close axle spacing. Engineering analysis shows that when turning corners the forces trying to tear the tire apart can be over 20% higher in multi-axle applications than with tires at the corners of the vehicle.
The only options for the trailer owner are to up-size the tires (if there is room) or up-rate and increase inflation (if a higher Load Range tire and stronger wheels are available). Lacking the above being sure to run the tire at the inflation shown on the sidewall (i.e. max) will slightly decrease but not eliminate the overload forces."

Wheel pressure can be a placard or indentation on the front back or in the wheel well which requires the tire to be taken off the wheel.