Most of the noise is coming from the cassette/rear derailleur area. The chain is visibly clicking on the lowest cog. I've adjusted everything; limit screws, barrel adjuster, b-screw, etc, so everything is lined up correctly. I've taken the jockey wheels off, cleaned them, put them back on. Still noisy. The bike is brand new, so the cogs and chain shouldn't be worn. On the other end, when pedaling hard on the workstand, the crank makes a deep vibration and the chain shakes between the cassette and the big chainring. I haven't had an opportunity to actually ride the bike yet because of the weather, so I'm not sure how it actually sounds on the road. At this point I've pretty much given up, and I plan on taking it to my LBS. Any advice or suggestions would be appreciated.