18 speed internal gearing. There is a tandem crank on the other side. They can shift from one to eighteen, or the other way, in a flash.
4000 euros apiece. For the bike only. I failed to ask if the discs are hydraulic or not. So many things that could be asked if there was a day more. The are from East Germany, and were 18 when the wall came down. I would have loved to chat about that a bit. His weighs in at 40 kilos; hers at 30. Schmidt dynamo hubs, with a specially made USB charging port on the stem. Flash bikes.
I highly recommend the Warm Showers experience.