Ever since I saw the Co-Motion Americano Rohloff belt-drive I'm been having serious ideas on setting up a bike with that combo. The issue with the belt drive is that you need to have a frame that can separate in the rear triangle. The Co-Motion has a special fitting to allow the rear stay to attach. On existing frames you would need to install a S&S coupler. The Co-Motion has all the cable routing stops for the Rohloff also. Only issue to me order one is the $$$$$. But of course, with the Rohloff belt-drive, I could thin the current crop of bikes.