Originally Posted by Azzy
Looks like a springless valve / LPC combo. If it is adjustable, it lets you adjust how long your valve says open (like changing springs on a normal valve)
Might be interesting to play around with, but I know most LPC's leak a bit for some reason in newer spyders after a while.
i'm doing a bit of research on this one. apparently this won't work on newer spyders being that the stem isn't long enough.