electric bike

M420 drive system MM G332.250 250w torque sensor mid drive motor electric bike kit

stars, based on 0reviews
100items available

M420 drive system MM G332.250 250w torque sensor mid drive motor electric bike kit

The mid-drive motot constantly samples relevant information at a frequency of up to 80k Hz via a torque sensor and two speed sensors which are all highly sensitive. The resulting data on crank torque, vehicle speed and the speed of rotation of the pedals is made available to the controller, ensuring precise control of the vehicle while achieving the highest possible efficiency. The Max Drive System puts the rider in complete control. In spite of a generous power output and a maximum torque of more than 80 N.m, the motor operates in virtual silence. The modular motor design and integrated controller make disassembly easier and improve service responsiveness. This motor can be black.

MM G332.250


Core Data

PositionMid Motor
Wheel Diameter (Inch)Optional
ConstructionGear drive
Rated Voltage (DCV)36/43/48
n0 (Rpm)101/112/112
Rated Power (W)250
Max Torque80 N.m
Efficiency (%)≥ 80
Pedal SensorSpeed and Torque Integrated
Shaft StandardBAFANG
Weight (kg)3.6
Noise Grade (dB)< 55
Operating Temperature-20-45℃


Gearsensor FunctionYes
Light Drive Capacity (DCV / W)6 /3(max)

Further Specifications

Speed Detection Signal (Pulses/Cycle)1
Reduction Ratio1:33.4
Magnet Poles (2P)8

Tests & Certifications

CertificationsCE / EN 14764 / ROHS
Salt Spray Test Standard(h)96


Dimension A202 mm
Dimension B123 mm
Dimension C41.5 mm
Dimension D154.8 mm


The BAFANG HMI with a high-contrast LCD display delivers all important information at a glance and can also be read in direct sunlight without difficulty. The BAFANG handlebar controller gives good feedback, is extremely robust and easy to use. The additional output can be individually controlled by five support levels. The user interface is clearly legible and intuitive to use. The HMI is compatible with the Bus system RS 232. The HMI is protected against contact and ingress of water and dirt and complies with protection class IP 65. It is available in black.


Core Data

Display TypeLCD
DisplayColor Matrix Display
Rated Voltage(DCV)36/43/48
Support Modes0-5
Operating Temperature-20 - 45℃
Com. ProtocolUART
Weight (g)160

Mounting Parameters

Dimensions (mm)72.1*103.46*66.5
Holder (mm)Ø 31.8/Ø 25.4/Ø 22.2
Cable Length(mm), Connector Type230 M5.2 / 850 M5.2
Control Unit Cable (mm)300 / 250

Indication Information

Current Speed (km/h)Yes
Maximum Speed (km/h)Yes
Average Speed (km/h)Yes
Single Duration TripNo
Single Distance TripYes
Total DistanceYes
Reset S.T. DurationNo
Reset S.T. DistanceYes
Error Code DisplayYes
Walk BoostYes
Light SensorYes

Further Specifications

USB Charge5V 500mA
USB CommunicationNO



Tests & Certifications

CertificationsCE / EN 15194 / REACH / ROHS


Dimension A72.1 mm
Dimension B103.46 mm
Dimension C66.5 mm
Dimension DØ31.8 mm
Dimension E45 mm
Dimension F68 mm
Dimension G3.2"

FP G360

AC M09

CC B3.240°


Shipping cost:
Before place order please contact me first to confirm the shipping cost.
A set of complete mid drive motor system package size 32 x 27 x 24cm, gross weight 6.5 kg.

1. 1 set of sample as the quote price, it is free shipping.2-3 sets shipping cost lower, so it will have some extra discount. More than 2 sets need inquiry me the total cost. I will give a much better price.

2. More than 4 sets but less than 16 sets. It is quote as EXW price, not include shipping cost. please notice quantity before deal, so that we can confirm the finally shipping cost.

3. More than 16 sets quote is FOB(Shanghai/ Ningbo) price. Order more than 16 sets please contact with me confirm the detail specs finally cost.
Country10KG10.1- 20KG 20.1- 50KG
 50.1- 100KG   100KG
Shipping working days
zone A23.14.778.157.16.936.627—8
zone B29.74.628.—9
zone C33.15.79.2387.237.19—10
NoticePlease pay close attention to partition the goods requirements
Magnetic inspection 3.1/KG Min charge3.1 USD/Carton,Min charge 16 USD/ Order
Zone AZone BZone C
BelgiumFranceAustriaCzech RepublicDenmarkBulgariaEstoniaHungary
MonacoNorthern IrelandSweden
Recent Reviews