Shengmilo MX03 and MX05 motors have powerful performance. There is no speed limit when leaving the factory. It can reach 40 kilometers per hour. If you need a speed limit, you can set it yourself. Here is a tutorial on speed limit setting.
1. First, press and hold the "M" button to turn on the electric bicycle.
2. Press + and - at the same time to enter the parameter setting interface.
3. Press the middle "M" button to switch to the corresponding item that needs to be set. After pressing the + and - keys to press the correct parameters, press the + and - keys at the same time to save.
The following is a video tutorial for your reference: