Originally Posted by
MoAlpha
The culprit for a skipping chain is usually the over-worn chain you just discarded, which, in turn, wore the cassette down to the point where it no longer fits a new chain. This can happen surprisingly fast. The smaller ring applies more force to the chain because of the greater torque arm on it.
Yes, could be, although the current chain was working OK with the sprocket originally. If what you suggest is the case, wouldn't the new chain have trouble right away?