Bafang M420 G332-CAN Mid Motor Controller, CAN Protocol 36V 43V 48V 250W Ebike Replacement PCB Controller

Bafang M420 G332-CAN Mid Motor Controller

This is a replacement PCB controller board for the Bafang M420 G332-CAN mid-drive electric bicycle motor, version FC2.2. It adopts CAN bus communication protocol, supports 36V, 43V and 48V 250W variants. The controller is tuning-friendly, perfect for motor overhaul, damaged board replacement and ebike aftermarket repair.

Specifications

Core Features

✅ CAN Bus Communication: Original CAN protocol architecture, stable data exchange with M420 motor, display and sensors.

✅ Tuning Supported: Tuning-compatible controller board, supports parameter modification for advanced ebike customization.

✅ Multiple Voltage Options: 36V /43V /48V 250W variants to match different factory M420 motor configurations.

✅ Precise Form Factor: Exact PCB shape and mounting holes, direct drop-in replacement for original M420 G332-CAN controller.

✅ Cost-Saving Repair Spare: Replace only failed controller PCB instead of the whole mid motor, greatly reduce maintenance cost for repair workshops.

Important Notes

1. This controller only fits Bafang M420 G332-CAN mid motor, NOT compatible with other Bafang models (M200, G210, M820, M500, M620 etc).
2. Please confirm your motor voltage, model and CAN protocol before ordering. Mismatch will cause communication failure or hardware damage.
3. Only controller PCB board is included. Motor housing, crank, chainring, sensors and display are NOT included.
4. Tuning operations should be completed by professional ebike technicians. Tuning may violate local e-bike regulations.
5. Professional installation is strongly recommended. Wrong wiring can burn the controller or motor hall sensors.

Essential aftermarket inventory for ebike repair workshops, conversion builders and B2B distributors servicing Bafang M420 mid motor e-bikes.