SpeedBox 3.0 for Bafang M300 / M400 (3-pin plug)

SpeedBox 3.0 for Bafang M300 / M400 (3-pin plug)

Eliminate the 25 km/h speed limit of your Bafang e-bike!

With this tuning tool you can get the maximum out of your drive system! The SpeedBox 3.0 is a tuning chip that completely removes the 25 km/h speed limit of e-bikes with the Bafang Max Drive M300 or M400 motors. There is even the option to individually set the desired top speed. The chip is conveniently controlled via the control buttons of the e-bike, you don't need a PC or smartphone.

Even when tuning is switched on, the display shows correct values, such as the current speed.

Advantages of the SpeedBox 3.0 at a glance

-Removal of the 25 km/h speed limit.

-Maximum speed can be set individually: You can set the maximum supported speed by first switching the mode down three levels and then up three levels again. The display then shows the current speed limit. Now the maximum speed can be set by briefly pressing the LIGHT button or turning the rear wheel 360°. After 5 seconds of inactivity, the last speed limit displayed is automatically saved.

-Correct speed in the e-bike display: Even when tuning is activated, the e-bike display shows correct values (speed, maximum and average speed, range, daily distance, etc.).

-Tuning can be switched on and off: The SpeedBox 3.1 can be conveniently activated / deactivated using the control buttons at the e-bike display. To switch on the tuning, you can either press the LIGHT button or the button combination + - + -. The display will then briefly show 99 km/h - this signals that the tuning chip has been switched on and the speed limit has been lifted. Press the LIGHT button again to deactivate the tuning. A short display of 25 km/h then indicates that the tuning module has been switched off and the maximum supported speed ends at 25 km/h again. The e-bike then functions as if no SpeedBox was installed.

-The SpeedBox 3.0 Tuning Chip does not require its own battery.

Installation

The SpeedBox 3.0 is a chip or module that must be connected to the plug connections at the engine. Thanks to the marked connectors, the installation is simple and can be done by yourself. You can use the illustration below as a guide for the installation.

If necessary, you can remove the SpeedBox module again at any time if you want to restore the original condition of your Bafang e-bike.

Important notes:

-If you install the SpeedBox 3.0 in a brand new Bafang e-bike, you must first ride the bike for at least 1 km before starting the tuning for the first time.

-If you want to update the software of your Bafang e-bike, you must first uninstall the SpeedBox 3.0 from the e-bike. Then update the software and install the SpeedBox again.

SpeedBox 3.0 for Bafang M300 / M400 (3-pin plug) - Compatibility

This tuning tool is compatible with the following e-bike drives (with 3-pin pins on the speed sensor):

-Bafang Max Drive M300

-Bafang Max Drive M400

3 pins on the speed sensor connector. To check if the number of pins is correct, you need to remove the motor cover and look at the speed sensor connector.

The SpeedBox 3.0 for Bafang is compatible with motors using the CAN protocol, but NOT with motors using the UART protocol. The CAN or UART protocol can be distinguished by the shape of the connectors.

The first step is to disconnect the display connector of your e-bike. The shape of the connector will tell you whether your e-bike uses UART or CAN communication.

CAN (compatible):

UART (not compatible):

NOT COMPATIBLE WITH:

Bafang Max Drive M420

Bafang Max Drive M500

Displays with UART connections

Not compatible with the SpeedBox app.

Note: This tuning tool is also available in a special "B.Tuning" version, which is also compatible with the practical SpeedBox app. This means you benefit from various useful additional options (e.g. engine lock, ride data analysis, hide tuning...).