Tires
(my travel trailer is 6000lbs dry. With added cargo 2000lbs it has max weight 8000lbs) my tires are ST225/75R15 load range E speed rating 75mph. Load 2830lbs single/2470lbs dual. If I put 70-80 psi i...
Forum Discussion
QCMan wrote:
Unless they say "always inflate to xx psi" on the sidewall then go to the tire manufacturers site and find their inflation chart for the tires. 8000 max divided by four is 2000 pounds on each tire so that is the load that you need the psi for. If it does say "inflate to xx psi" on the sidewall then that is the only number you need.
really need to inflate ABOVE the actual load.
Look at your other vehicle tire psi and you will find that the recomended inflation pressure is noticeably above the max rated load of the vehicle or each axle.
And many of the ST tire mfg recomend inflating to max psi unless that is way above the actual tire load. I have LRE endurance on my trailers and I use the max pressure, can't tell the difference between that and lower pressure and the still wear evenly.
