Fits 95% of standard bike frames with 68-73mm bottom bracket
Tthe torque sensor can accurately detect the foot force, and give it several times in time. It can output accurate torque signal when it is at rest, with excellent zero start performance.
When climbing a hill, it is as labor-saving as starting. Flat riding is extremely energy efficient and power saving.
Since the output is proportional to the output of the person, the coordination is good, and it can be said that the perfect combination of people and machines. The motor has an extra support mount.
