Originally Posted by
oldbobcat
You didn't specify which end of the cassette the chain was on when this occurs, whether it's dropping on upshifts, downshifts, or both, if your chain is trimmed to a proper length, or if you have modified the chain line by installing a different crank or bottom bracket. Go back and check and get back to us.
Thanks--middle of the cassette, and typically on upshifts. Chain length should be good as it is factory stock, and I've made no modifications.