SpeedBox 1.2 B.Tuning for Bafang (3 pin connector) - Qty: 20 pcs + 3 free, Package: BAG

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SpeedBox Connect

PROPERTIES:
Compatible with: SpeedBox Connect
Maximum speed: 50 km/h
Activation: by pressing the LIGHT button/ SpeedBox Connect
Display shows:
   real values up to 23 km/ h
   then the actual values are only displayed in the SpeedBox Connect
Compatible with motors :
   Bafang Max Drive M300
   Bafang Max Drive M400
   UART/ CAN protocol
More

Product code: SB12BT_BAF_20+3pcs_BAG Shipping and Payment

Key features

SpeedBox 1.2 B.Tuning with integrated Bluetooth is a tuning chip for e-bikes with Bafang Max Drive M300 and M400 motors (with UART/CAN protocol). It removes the 25 km/h speed limit and, thanks to the SpeedBox Connect app, offers a unique connection between the e-bike and a smartphone.

Tuning control

Switching from the 25 km/h limit to 50 km/h and back

SpeedBox Connect

Connects the e-bike to a mobile phone via Bluetooth

Easy installation

Thanks to clear instructions including a video, anyone can handle the installation

Remote updates

You can update the SpeedBox to the latest version via the app

Compatibility

Bafang Max Drive motors: M300, M400 (with UART/CAN protocol)

Technical specifications

Maximum speed	50 km/h
Display shows	Real-time values up to 23 km/h, then real-time values only in the SpeedBox Connect app
2 ways to activate / deactivate	The LIGHT button / the SpeedBox Connect app
Bluetooth	Yes
Updates	Yes
Minimum mileage before installation	10 km (new bike)

Benefits of connecting the B.Tuning version with the SpeedBox Connect app

SpeedBox marked as B.Tuning uses Bluetooth technology, which lets you connect your e-bike to the SpeedBox Connect app. This lets you control the tuning, monitor real-time data, and save ride records — all clearly displayed on your phone's screen.

Download the app →

Tuning control

Switching the e-bike's speed limit from 25 km/h to 50 km/h.

Real-time data in the app

Once you go over 23 km/h, the real speed is only shown in the SpeedBox Connect app.

Installation

Installing the device is easy and intuitive. Choose the option that suits you best — a video guide, a printed manual, or a detailed step-by-step picture guide.

Video guide

You can find a detailed installation and tuning activation procedure on our YouTube channel

Printed manual

Inside the product package you will find a printed manual including a wiring diagram for connecting the chip to the motor

Step by step

The illustrated guide will walk you through the installation step by step — from removing the motor cover to the test ride. Each step is accompanied by photos and a clear description.

User manual →

Warning

Rules for using derestricted e-bikes vary by country, so check local legislation before riding.
SpeedBox is intended for off-road use only and you use it at your own risk.
The manufacturer is not liable for damage caused by illegal or improper use.
Installation may also void your e-bike warranty.
For your safety, use appropriate protective gear and ride with maximum caution.