SpeedBox 1.0 Tuning Chip for Bafang Max Drive M300 / M400 (pre-2020)

SpeedBox 1.0 Tuning Chip for Bafang Max Drive M300 / M400 (pre-2020) Fits Bafang Max Drive M300 and M400 motors on bikes made before 2020. Raises the speed limit up to 50 km/h, switched with the LIGHT button.

SpeedBox 1.0 Tuning Chip for Bafang Max Drive M300 / M400 (pre-2020)

SpeedBox 1.0 for Bafang is a tuning chip for e-bikes with Bafang Max Drive M300 or M400 motors. It raises the speed limit to 50 km/h.

Tuning is switched with the LIGHT button, and the display shows half values while tuning is in use. This version does not connect to the SpeedBox Connect app.

Key Features

• Speed limit: up to 50 km/h
• Display: shows half values
• Activation: LIGHT button
• SpeedBox Connect app: not supported

Compatibility

• Bafang Max Drive M300
• Bafang Max Drive M400
• Not compatible with 2020 bike models
• Not compatible with the SpeedBox Connect app

Good to Know

• For 2020-onwards bikes and the M420 motor, see SpeedBox 1.1 for Bafang (SB11-BAF).

Legal and Safety Notice

This tuning chip changes the e-bike's factory speed limit and assistance settings. A modified e-bike may not be legal to ride on public roads, cycle paths or other public areas; SpeedBox products are intended for use on private property, at the rider's own risk. Installation may void the e-bike manufacturer's warranty. Installation by a qualified technician is recommended. Always wear appropriate protective gear.