The torque sensor measures your pedaling effort in real time to provide power, which is not only more power efficient, but allows you to achieve a higher range. And when climbing, the torque sensor provides much more power than the speed sensor.2. It gives you a sense of control close to that of a conventional bicycle, avoiding the safety hazard of sudden acceleration, but smoothly accelerating under your control. We believe this is an important factor in choosing an electric bike over an electric car or motorcycle.3.You still have the option to pedal harder when you want to accelerate, which doesn't require you to use very much force or even strain, or just use our throttle to accelerate.