Quote Originally Posted by aicabsolut View Post
What do you mean by "jumping"? Do you mean the chain feels like it's skipping on top of the cog or is the chain trying to jump between cogs and not settling on any one cog?
Both. I don't have any problem shifting, but the chain wants to ghost shift over the cassette. Thanks for sharing the links and I'm going to meet with the lbs mechanic and see what we can do to fix the problem.

I guess a new chain and cassette is a small price to pay.