I took my chain off, and that's part of it, but there are like 3 different noises going on in different parts of the drive train...personally, I think something is screwed up with the BB...the guy who set up the bike kept talking about what a ***** it was to re-space it to fit... If you say that Oscar guy is good though, I'll take it to him. I used to take my surly 1x1 to them when it was a SS years ago and they were always nice guys.