Originally Posted by
rfmarotti
There are little tabs on the jockey wheel cage plates by the pulleys. The chain is supposed to route *under* those tabs. If you go over them instead, it's really noisy.
I had an S&S coupled travel bike for a while and always removed the chain when packing it for a trip. One time when I assembled it in a hotel room I did exactly what you show and mis-routed it through the rear derailleur. In the first 100 meters I knew something was wrong and had to stop to fix it in the hotel parking lot.