Originally Posted by Speedub.Nate
The air forks use 25 to 65 psi (again, air pressure) for main chamber pressure (positive pressure, they call it). Again, that's an indication directly from the guage. This is based on rider weight and should be set to achieve the desired amount of sag (typically 20 to 30%).
No way is anyone going to get 20 - 30% sag with 65 PSI.
Remember, I am talking about MX COMP forks here - not Marzocchi's entire line. The thread is about MX Comp - and nothing more.