This version of the tandem bike was designed to provide safe, controlled physical exercise for a passenger who cannot independently control steering or propulsion. The system integrates a resistance mechanism into the passenger’s drivetrain, allowing them to pedal against adjustable load while the caretaker maintains full control of speed, steering, and braking.
The passenger’s pedaling effort is decoupled from vehicle motion, meaning they experience the physical and rhythmic sensation of cycling without influencing the movement or safety of the bike. This design enables meaningful exercise and participation while eliminating the risks associated with shared control in complex or unpredictable riding environments.
The resistance mechanism was intentionally placed to balance mechanical simplicity, durability, and rider comfort, ensuring consistent load and smooth pedaling under a wide range of conditions. By separating exercise from control, the system allows the rider to feel actively engaged while being safely carried and guided by the caretaker.
