Above are the suggestions for riding, and the gear can be used reasonably according to
personal habits.
When using the drive system, we should pay attention to the following details.
When using the speed transmission system, try not to skip gears, because jump gears can easily damage the speed transmission. That is ,
it is absolutely impossible to change more than two gears at a time and it should be adjusted at one level to another level to better
protect the speed transmission system.
When the bicycles stops running, or when it is going downhill, do not let the transmission system reversed, which is not only bad for the
transmission system, but also may cause accidents.