Speed limiter: up to 50 km/h
Display shows: half values
Compatible with motors: Bafang Max Drive (M300, M400)
This SpeedBox is not compatible with the 2020 bike models
Activation: by pressing the LIGHT button
Compatible with SpeedBox App: NO
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Product code: SB1_BAF_100+16pcs_BAG

14 500 € incl. VAT

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Basic tuning kit for e-bikes with Bafang motors.

SpeedBox 1.0 enables you to double the speed limit of an e-bike from the original 25 km/h to 50 km/h. When applied, the actual speed will be displayed in half values. The display also shows your trip and other aspects of your ride.

How does SpeedBox 1.0 work?

SpeedBox 1.0 tuning kit can be activated on the e-bike’s control unit. After pressing the LIGHT button, the active lights icon will be displayed shortly after which you will be able to ride at a speed of 50 km/h.  The chip is deactivated by pressing the LIGHT button again.


When connecting the SpeedBox chip to an e-bike you will find connectors colored to make installation very simple. We have prepared detailed instructions and videos to make installation easy for you in the comfort of your home. Disassembly of our tuning chip is just as easy. If you have any troubles with the installation or disassembly, do not hesitate to contact us.

If you are planning to install SpeedBox on a brand-new bike, make sure you ride it for at least 1 km before the chip is activated.

Download manual


Please note that the operation of this type of modified electric bikes on public roads may be against the law in some countries. The manufacturer takes no responsibility for damages resulting from the use SpeedBox products. Electric bikes equipped with SpeedBox products are not allowed to be used on public roads, cycling paths and public places. Electric bikes equipped with SpeedBox products can be used exclusively on private property and entirely at one’s own risk. The use of SpeedBox may void the warranty of your ebike.

We strongly recommend using other safety features and protective gear to prevent injuries in higher speeds.


Marcin mk KUROWSKI

Hello, I bought a speed box from this website SpeedBox 1.0 for Bafang M400 MaxDrive and M300 UART. I have a Cortina M300 motor bike, I can't connect these cubes to the engine, the colors of the cables are different than in the youtube video. Please give me a hint on how to do it, some other instruction for a typical Bafang M300, a diagram so that I can see what cable to plug in and drink because it is not readable and visible on the video.

My bike is: Cortina E-Common 7v MM 2021
750 Wh
Men's bicycle
Frame size cm
61 cm
Mystery Gray Matt, purchased from

Unless it turns out that this chip is incompatible with my bike? I am asking for help, I am waiting for your e-mail, GREETINGS, Marcin



Will this work with

Bafang SWZ02 250W rear hub motor


Jiří Voldán (Sales Manager)Administrator |

I regret to inform you that SpeedBox is not compatible with rear hub motors.


Hi :)
Does it work with Bafang DPC 11 Display on a Bafang Max Mid drive motor ?


Jiří Voldán (Sales Manager)Administrator |

Yes sir. We confirm compatibility with your display and motor.


does it work on

Granby Bafang

Contact us!