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.

Inflation information for vehicles is a COMPLETELY DIFFERENT scenario than trailers. Typically vehicle inflation pressures take into account the GAWR of the axle and closely match the tire inflation pressure load to that number. GENERALLY trailer tires, especially ST tires don't have hugh reserves unless you have upgraded the tires plus because of the unique stresses on TT tires running them at the max pressure on the trailer sidewall gives you the best service. On a trailer you don't have to worry so much about 100% max road contact nor are dealing with steerable tires or the normal vehicle NVH issues where overpressure can have a negative impact on those. There might be a few exception like some trailers that are in the high end weight and use 16" E rated truck tires where inflating those to the max sidewall would give one HUGE (like 4K and up excess capacity) reserves so a somewhat reduced inflation pressure might be called for.

Larry