Nitrogen is Expensive?

[badandy]

Check with any aircraft shop and they will likely do it for free! I carry it on my truck, 4500psi portable bottle. the volume is essentially zero. they are charging for the equipment... AND yes, ripping you off. Nitrogen or N2, is clean, dry, and fluctuates less to temp, that's why it is used. Aircraft fill their tires and hyd accumulators with it, additionally oxygen becomes increasingly volatile at higher pressures, and N2 is inert...blah blah, blah.... I'm mobile, and in Nor Cal, bay area..., buy me lunch... hint, hint....

What is the charge, psi on a rear shock?

[CRAZY70MAN]

Nitrogen is expensive.........so expensive we use it to purge miles and miles of old natural gas lines that were replace and left in the ground..... Glad ya found an honest shop and got some great info from him.

[just ben]

What is the charge, psi on a rear shock?

It depends on the shock, usually 150-170 psi. Works charges theirs to 250 psi.