Cause of failure 4: the drive system of electric mountain bike rub resistance is too big. The elimination method: 1 adjusts the relevant parts of the transmission system so that the flywheel, sprocket and chain are on the same plane

When you ride an electric mountain bike normally, if you feel the car heavy, electric, pedaling, and slow, we call these phenomena hard riding. As soon as you get more and more tired on an electric bike, it is likely