I beg to differ with everyone who says "never use compressor air", uhhhh, air is air guys. Volume of your compressor has no bearing on how much air will go in, it's all about the pressure regulator. I have ALWAYS used my 80 gallon craftsman oil less compressor to air up my shock and tires. Still have original shock and it still works just fine. If you use a regulator and set it to 65-70 (or if you just set your compressor to not fill beyond 70 psi) and you just pop the chuck on the shrader for a second and then check the pressure with the gauge and do again as needed till you hit the mark your looking for, you'll be fine. Common sense goes a long way in instances like this. Of course, having said that, I realize there are some out there who lack common sense, sooooooo.............
"Be Water, My Friend" Bruce Lee 1971
2013 CCT Grasshopper Drivers Backrest, PVC Self Made 1/4 turn Throttle Ring, Thrush Self Modded Mufflers, Kuryakyn 4526 Tour-Tech Adjustable Cruise Mount/Tour-Tech Pegs