Prometheus MS170 Non-Linear Spring

The Prometheus MS170 Non-Linear Spring is mainly used in Ultra High Torque set ups but we actually rarely see it in the field.

To use this spring, almost the entire gearbox needs to be adapted to the force of the spring. A standard motor cannot tension this spring and you need a utra high torque motor. It is also wise to install a re-inforced gearbox shell including replacing all gears to a gearset built for such a setup.