A friend of mine is looking to buy a new bike. The bike hes looking at comes with a rock shocks judy fork. I dont know anything about the judy. Could anyone give me some information on it? Is it air assist? I sure hope its not a rubber bumber system like the ensyncs. I would like to know because it may be worth for my friend to pay $90 to fix my old rock shocks pilot and put that on his bike. Any input would be much appreciated.