PAS Torque Bottom Shaft Power Assist Sensor for Bafang M400 G330 G33 Mid Motor, UART Communication Version Replacement Sensor

PAS Torque Bottom Shaft Power Assist Sensor for Bafang M400 G330 G33 Mid Motor, UART Version

This PAS torque bottom shaft power assist sensor assembly is a direct replacement spare part for Bafang M400 G330 G33 mid-drive electric bicycle motors. It adopts UART communication protocol to transmit torque and pedal assist signal between crankshaft and motor controller, accurately detecting rider pedaling force and pedal cadence to deliver smooth, responsive power assistance.

Compatibility

✅ Bafang M400 / G330 / G33 Mid-Drive E-bike Motor

✅ UART Motor Version (Please confirm your motor communication protocol before purchase)

Precise Specifications

Package Includes

1 × PAS Torque Bottom Shaft Power Assist Sensor Assembly

Key Features

✅ Accurate Torque & PAS Detection: Integrated torque and pedal assist sensor, precisely captures pedaling torque and rotation speed to achieve seamless power output matching.

✅ UART Communication Version: Matches UART protocol Bafang M400/G330/G33 mid motor, stable signal transmission, no signal loss during riding.

✅ Complete Assembly Ready to Install: Fully assembled bottom shaft with sensor, wiring harness and plug as shown, direct swap for failed original sensor.

✅ Reliable Durability: Precision machined shaft structure, stable sensing performance, resistant to vibration under long-term ebike riding conditions.

✅ Ideal Repair Replacement: Perfect solution when your original Bafang mid motor suffers from no assist, intermittent power or torque signal failure.

Specifications

Product Name: PAS Torque Bottom Shaft Power Assist Sensor

Protocol: UART Version

Compatible Motor: Bafang M400, G330, G33 Mid-Drive E-bike Motor

Function: Torque sensing + PAS pedal assist detection

Plug: As shown in product image

Package: 1 × Complete PAS Torque Bottom Shaft Sensor Assembly

Important Notes

• This sensor only fits UART version Bafang M400/G330/G33 motor. Please verify your motor version and plug shape before ordering.
• Professional ebike mid motor disassembly and installation skills are required for replacement.
• Incorrect installation may lead to signal failure or abnormal power assist function.
• Wiring plug design strictly follows the picture, please check plug pinout to avoid mismatch.

High quality replacement spare part for ebike repair shops and DIY e-bike builders. Fix torque signal or pedal assist faults for Bafang M400 G330 G33 UART mid drive motor.