110psi tire question...

garysol wrote:
Not to beat a dead horse but I am a little confused after reading many threads on the subject. I am running the Sailun S637 G rated tire with a max PSI of 110 which is what I have been running. I have read that many many people are running G rated tires at 100 or even 90PSI which lowers the tires max rating. I am confused as to why I would want to lower the inflation in the tire. Why would I not want want as much weight carrying as possible? What is the advantage to running a lower inflation?

Only on a RV website have I ever saw anyone use or recommend a minimum tire pressure charts for a tire on a trailer. In fact I never heard of the folly of derating a tire on a trailer till I came on this website.
Were not talking truck pressure requirements. Apples vs oranges.
Tires on a trailer operate in a much harsher environment than the same tires on a truck. DRop the pressure down to 90 psi and watch the tires sidewall/tread flex as it side scrubs around a corner. Now pump them to the max and repeat the process.

Now if you have pulled a rookie and are using those G load range tires on 5.2 or 6k axles then at some point 110 psi is too much pressure.