Hi, I hope somebody can help, as I had enough of these cycling shops ripping us off. I love my MTBing, but I'm not that good at the tehcnical stuff (yet). I had some diff with my XT rear derailleur for some time time. It's as if it gets in between two gears and jump up and down when paddling. I had it with 3 diff shops the past two weeks - guess what : IT'S STILL NOT RIGHT. And the worst of all is when I tell them what my prob is, they look at me as if I'm madd. Is there a site where us dummies can download stuff like: HOW TO SET UP YOUR OWN BIKE...AND SAFE TIME, MONEY, AND TEARS?? Please help!