E-bike tuning - for e-bikes/pedelecs with BAFANG motor


BAFANG - A relatively young Chinese company that has been meeting the challenges of global e-mobility trends since 2003. The development of solutions for electric vehicles, including e-bikes and pedelecs, employs around 1,000 people at eight locations worldwide. For some years now, the mid-mounted motors for the European market have been produced in Poland. BAFANG maintains sales and service centres in the Netherlands and Germany, among other countries. In addition to components for e-bikes, the portfolio also includes HMIs (Human Machine Interface), batteries and sensors as well as connectors and controllers.


BAFANG motors are particularly suitable for retrofitting to traditional bikes. However, only the drives of the Max Drive or M series are interesting for e-bike tuning, because these are mid-range motors. No tuning is currently offered for the motors of the HR and HF series. In the following list you will find the motors of the M series for which we offer tuning modules. Please check the data sheet or ask your dealer which year of construction your BAFANG engine has.

The following list shows you which modules we offer at SIP Scootershop for BAFANG engines:

The manufacturer from the Czech Republic has gained experience in the production of tuning chips since 2014. Its modules are installed directly on the engine and are suitable for all BAFANG engines depending on the year of manufacture: SpeedBox 1 for the models before 2020 and SpeedBox 1.1 for the current models of the M series.

E-bike and pedelec tuning from Lower Franconia. The so-called Badass Box is not installed on the motor, but simply attached from the outside and works with many new and older models of the BAFANG M series. Version 4 is the latest model and offers a range of over 7,000 kilometres.


At SIP Scootershop we offer the following tuning modules for BAFANG engines:

These small boxes are plugged onto the sensor of the bike or pedelec and now this tool halves the transmitted speed, doubling the motor assistance. It is a wireless device that can be removed again in no time. The manufacturer Badass is the market leader here.

These modules contain a chip and cables with connectors. They are installed invisibly under the engine cover and clamped between the sensor and the control unit. Many modules can even be switched on or off via the display while driving. The latest modules, such as the Speedbox B, also have integrated app control via Bluetooth. The control and also the reading of the motor data can be done with the smartphone. However, tools are required for installation and removal. In the following, we will go into more detail about these modules.

The motors are controlled by a speed pulse that tells them how fast a pedelec or e-bike is travelling. If the pulse reaches 25 km/h, the motor switches off. However, if only every second signal of the impulse comes through, 50 km/h can be reached, because the motor is "fooled" into thinking it is travelling at a different speed. With cheap modules, the speedometer then simply displays half the speed.

More sophisticated chips are more advanced: they halve the impulse only from 23 km/h or, in some drives, they are directly connected to the data transmission between sensor and motor, so that the speedometer always shows the correct values. The most modern tuning modules, for example from VOLspeed or Speedbox, even display the total kilometres driven and average speeds correctly.

However, the software version of the bike and pedelec must also be kept in mind. A carelessly installed update from the manufacturer can abruptly end the tuning pleasure. Be careful, because the motor manufacturers and tuning experts are constantly playing a cat-and-mouse game.

Want to know more about e-bike tuning?

Here you will find all the information you need on the subject: Finding the right tuning module


It should be noted that the operation of this type of modified electric bicycle on public roads may be against the law in some countries. The dealer accepts no responsibility for any damage caused by the use of tuning products. Electric bicycles equipped with tuning products must not be used on public roads, cycle paths and squares. Electric bicycles equipped with tuning products may only be used on private property and at your own risk.