Well I havent had a chance to really check it out yet but when we got back from a 6 hour ride yesterday I coasted into the garage with the engine off and heard the most freakish sound coming from the rear either the chain or wheel bearings. Bike only has 6K miles so hopefully not wheel bearing yet. I know the sprockets and chain need replacing but I haven't heard this noise before. I'm not home right now to where I can work on it but I was just worrying about what it might be. Any ideas until I can tear it down? Thanks!