Quote Originally Posted by mimitabby View Post
no kidding!

so what's chain suck and ghost shifting?
Chain suck:

http://www.fagan.co.za/Bikes/Csuck/

"The chain fails to disengage from the bottom teeth of a front chain-ring ; instead the teeth snag the chain and carry it up and around the rear circumference of the ring, winding it back onto itself, and jamming it between the chain-rings and chain-stay. "

As for ghost shifting, I guess thats when you bike shifts on its own. Usually because the rear derailleur is not properly adjusted or due to cable stretch.