The back passenger (the pilot), is taking care of everything (steering, shifting, balancing and obviously pedaling). This means, the front passenger, sitting as on recumbent bike, “only” has to pedal. Last but not least: thanks to a freewheel on the crankset, the front passenger can also stop pedaling to rest if needed.
This tandem, initially created for disabled people, is now used by thousands of travellers thanks to its special design enabling a good communication and an amazing feeling of freedom for both of the passengers.