Originally Posted by rmfnla
Sorry, but Jobst is just plain wrong. The wobble in a freewheel is from the aforementioned gap in the ball bearings.
I've heard that also. Whatever the cause, it's harmless. I noticed it years ago, but concluded it's irrelevant because it only happens when coasting. It's nothing to do with the chain skipping, which is more likely to do with worn teeth.