I know the air pressure you set on your shock is personal preferance but I was wondering if there is any guide lines to start with. I read that starting with your weight (im 175 lbs) and using a corresponding PSI (hence 175 psi) is a good start. Anyone else tried this theory?
Generally, linkage bikes are in the lb=psi ballpark (of course depending on the linkage ratio), but single pivot bikes usually run less pressure than that.
If you can't find a setup guide for your bike, try your weight in psi, set the sag to ~30% total travel, go ride, and adjust again if needed based on the ride and how much travel it gets.
Use the o-ring on the body for setting sag and checking travel.