Tuning of E-bikes with a Bafang motor - Communication protocol/ Display connector - UART

How to choose the right SpeedBox for your e-bike with a Bafang motor?

STEP 1: Communication Protocol / Display Connector
Unplug the display connector and check if your e-bike uses UART or CAN communication.
Click on the correct option.

STEP 2: Number of Speed Sensor pins
Remove the motor cover and check on the label whether the Speed Sensor connector leading to the e-bike frame has 3 pins, 4 pins or 8 pins (motor M200, M410, M500, M510)
Click on the correct option.

STEP 3: Bluetooth / SpeedBox App
If you want to pair your e-bike with the SpeedBox App on your smartphone, choose the option called "B.Tuning."

SpeedBox Model Compatible Motor Communication Protocol Speed Sensor Connector Bluetooth Function & SpeedBox App  Max Speed Speed Limit Settings Real Values Motor Lock Invisible Tuning Bike & Trip Data Analysis

SpeedBox 1.2 for Bafang

M300, M400

UART

3 pins

50 km/ h

SpeedBox 1.2 B.Tuning

M300, M400

UART

3 pins

50 km/ h

(in App only)

SpeedBox 1.3 for Bafang

M300, M400, M420

UART

4 pins

50 km/ h

SpeedBox 1.3 B.Tuning

M300, M400, M420

UART

4 pins

50 km/ h

(in App only)

SpeedBox 3.0 B.Tuning

M300, M400

CAN

3 pins

Unlimited

SpeedBox 3.0

M300, M400

CAN

3 pins

Unlimited

SpeedBox 3.1 B.Tuning

M300, M400, M420

CAN

4 pins

Unlimited

SpeedBox 3.1

M300, M400, M420

CAN

4 pins

Unlimited

SpeedBox 3.2 B.Tuning

M200, M410, M500, M510

CAN

8 pins

Unlimited

SpeedBox 3.2

M200, M410, M500, M510

CAN

8 pins

Unlimited