Innovative accessory that can be added to any bicycle to convert it to a "therapeutic bicycle".
- Allows one to move the pedal closer to the center of rotation of the crank which allows a revolution of the pedal with less bending of the knee. Allows those with stiffened knees and leg length discrepancies to return to bicycling
- Hip flexors move less resulting in less pain and fatigue.
- Leverage lost in bike mechanics gained by the knee.