FOX Van RC Coil Rear Shock

(discontinued)

This shock is filled with nitrogen, which is why it is so reliable. It's a "mini" dirt bike shock basically. You don't have to check any air adjustments before you ride. Plus nitrogen doesn't heat up as fast so it maintains performance on long runs. And if it ever does fail on you, you can take it to a motorcycle suspension mechanic instead of having to ship it to Fox (this voids your warranty though). I'll take this over an overpriced "high end" shock any day when the money is coming out of my own wallet.