Bafang max drive clutch/ Bafang M400 finger freewheel for replacement; If your M400 MAX Drive is not smooth when pedaling, then consider the pawl clutch is defective.

This pawl clutch is also suitable for AEG MM G350 motor.

How to replace the Bafang Max drive M400 G330 pawl clutch, please check the video below:

Bafang M400 reduction gear for replacement; the Bafang max drive steel cover is included.

The item includes motor gasket, reduction gear and gear cover/motor casing as shown in the picture.

For how to replace the reduction gear cover, please refer to the following vedio.

Bafang max drive  M400 G330 motor controller(UART protocol) for replacement. If your motor is with CAN protocol, this controller will not fit. Please double check before ordering.

The Bafang M400 controllers has several parameters, 36V 250W, 36V 350W, 43V 350W or 48V 350W controllers, please check your own motor before placing the order.

If you want a headlight for your bike, you can add a pair Bafang MAX M400 G330 headlight/rearlight cable and a LED headlgiht with the controller.

Note: if your original motor is with coaster brake, this controller may not fit.

Bafang has two protocols for the max drive mid motor, UART or CAN protocol. How to identify? UART protocol controllers no need calibration; CAN protocol controllers may needs calibration. 

If the display connector is with triangle connector, then it is with CAN protocol. The back of the display may also mark “CAN” .

The controllers we are selling is with UART protocol and it will not fit for CAN protocol motor. please double check before ordering. 

If your original controller is 48V 13A, then you can choose 48V 13A controller for replacement. Bafang has upgraded to 13A controller for the 48V motor.

How to replace the Bafang Max drive M400 G330 controller, please check the video below:

Bafang Ultra G510 M620 speed sensor;

Bafang M400 MAX drive G330 motor speed sensor;

Bafang Modest drive M300 G360 speed sensor.

Bafang M420 speed sensor.

Important: There are two types speed sensors, you can identify them by the connector, 4 pins connector is for CAN motors, and 3 pins connectors is for UART motors, please check your original speed sensor's connector before ordering. You can also check our pictures on the website for the connectors.

Bafang Max drive MM M400 G330 axle with torque sensor;

The axle provided by Bafang fits for Bafang M400 G330 mid motor.

The length for the axle is 151mm.

There are two versions for Max drive mid motor, standard e-brake motor and coaster brake(pedal brake) mid motor; and the torque sensor for them are different.

There are two protocols for the torque sensors, CAN and UART protocol;  For how to identify the motor is UART or CAN protocol, please check our pictures on the M400 controller page. There is another way to identify. UART protocol torque sensor connectors are with the female connectors which are shown on our pictures; the CAN torque sensor is with the male connectors.

How to replace the Bafang max drive M400 G330 torque sensor, please check below video:

Bafang M400 G330 G33 motor sealing gasket; if you open your motor, the gasket would be violated, then you may need a new gasket.  

Bafang Max drive core, including Bafang M400 stator or rotor for replacement.

Bafang M400 motor core is easy to disassemble and replace.

The Bafang MAX drive M400 G330 motor core are sourced directly from Bafang.

If your motor is CAN protocol, this stator or motor core would not fit for your motor. 

How to check your motor is CAN or UART protocol? Please check from the M400 controller or the Bafang display connector;

The UART protocol controller will have a "U" mark on the controller, it's EB-BUS connector is with female connector and the display for the motor would be UART protocol with a 5 pin round connector.
If the display connector is with triangle connector, then it is with CAN protocol. The back of the display may also mark “CAN".

Replacing the CAN motor core, you may need to recalibrate the motor.

For how to replace the motor core, please check video below:

Bafang max drive MM G330 Motor nylon gear with bearing for replacement；

There would be two versions for the Nylon gear, one is with 4mm gap depth, and the other is with 6mm gap depth.

The height of the bearing is 46mm with 4mm gap gear; the bearing height for 6mm gap gear is 44mm. The two Max drive bearing sets are not compatible. 

44mm gear set is the old version while 46mm gear set is the new version, please check your original bearing before placing the order.

The solo nylon gear only fits for 46mm gear set.

For details, please check the picture for the gear; please double check before placing order. 

Bafang MAX drive m400 G330 chainwheel- 38T;

Bafang M300 M200 motor share the same MTB chainwheel with M400 motor.

Bafang M300, M400, M620, G330, G360, G510 UART EB-BUS cable.

Bafang Max drive cable, main harness 1T3, connecting the display, a pair of e-brakes, cable length: 1.2m;

Bafang Max drive cable, main harness 1T2, connecting the display and one brake, cable length: 1.2m;

Bafang Max drive cable, main harness 1T1, connecting the display, for coaster brake system, cable length: 1.5m

If your original Max drive unit is with 1T1 EB-BUS and you want to add a throttle function for your ebike, please choose the 1T4 EB-BUS. The throttle function only works after starting with pedaling the ebike, please note.  

If your original Max drive unit is with 1T3 EB-BUS and you want to add a throttle function for your ebike, please choose the 1T4 EB-bus. The throttle function only works after starting with pedaling the ebike, please note.  Important tips: the throttle for the Bafang M400 motor only works under load with the pedal speed reaching 10km/h.

The display connector is with 5 pin round connector which means for UART protocol, not for CAN protocol, please note.

DZ41 screen(UART) for Bafang BBS motor, UART M620 motor, UART M400 motor, UART M420 motor.

This LED meter is suitable for all the Bafang UART motors. How to identify your motor is UART motor or not? Just check the screen connector, it is a round female connector, then it is UART Bafang motor display.

Thumb throttle/accelerator for Bafang central driven motor kit bbs01, bbs02,  BBSHD, Ultra G510 M620, Max drive M400, M420, M500, M600 or M800 mid motors.

Note: This throttle also fit for Bafang Max Drive M400 G330 motor, but you need to change to a 1T4 EB-BUS, otherwise you cannot connect the throttle to your Max drive unit.

Bafang shift sensor for MAX drive M400 G330, modest drive M300 G360, Bafang M420, Ultra M620 G510 mid motor.

Bafang DP C07( also called C966) display for Bafang Max drive M400, M300, BBS serial motors.  

Bafang DP C10 display Bafang M400, M300, M420 etc motors.

There are CANbus and UART protocols for the two displays, how to identify UART or CANbus? If your motor is CANbus, then your display must be CANbus, If your motor is UART motor, then your display is also UART protocol; another method is to check the display connector, CANbus display is with triangle connector while UART display is with round 5 pin female connector. You can check our picture.

UART display, please set the wheel size and speed yourself.

The C966 display has automatically backlight which would be more convemience during night riding.