I'm considering renting out or selling our yellow Bernds tandem. Currently has Rohloff but may swap it out to make cheaper. Frame folds slightly. 20" wheels.
Main thing is that it can take a smaller stoker - maybe a 7 year old. Not as small or light as a Helios. Bike is currently underused and does need some TLC but working.
Hope Hydraulic disc on front. Schmidt hub maybe if wanted.
Pm if you're interested or email via LB bikes.
Ideal for going round town and beyond - quite comfy. Been all over the place Sweden, France, Denmark etc. Fairly rare too. It will go on any train once folded. New it was £2.3k but that was in 2000!