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In addition to the normal commercial e-bikes, there are lots of conversion systems available. "Bafang" is one of the leading manufacturers in this area - both for e-components and complete systems.
Note: The M325 drive systems with CAN protocol, this motor is only compatible with the BT F22/F23 batteries. Bafang M225/M325/M625 drive systems can only be used on vehicles intended for off-road use and designed to travel on unpaved surfaces. Please make sure to comply with local laws and regulations.
This conversion kit contains the following components:
Compared to the hub motor, the mid-drive motor doesn´t transmit the power directly to the wheel, but the bicycle chain. This means, your rear bicycle gears can also be used with a motor assist, which is not only an advantage when riding uphill. Further advantages are ideal weight distribution, low center of gravity, and a very natural riding experience. Furthermore, the front and rear wheels can still be changed without any problems.
Bafang M325 motor function is very simple: The electric motor powers the front chainring with an internal gear ratio of 22:1. An integrated clutch makes it possible, that the crank arms won´t be moved while the chainring rotates forward.
The conversion is very easy and can be done by anyone with a little manual skill. Briefly described(In our video, we have shown this in detail):
Motor model: | MM G341.500.C |
Rated power: | 500 W |
Rated voltage: | 50.4V |
Rated efficiency: | ≥78% |
No-load current: | <1.8A |
Rated current: | <13A |
No-load speed: | 126±10RPM |
Rated speed: | 116±8RPM |
Rated torque: | >40N.m |
Maximum torque: | >100N.m |
Axis speed sensing: | Cadence Sensor |
Certification: | UL / ROHS / EN14766 /EN14764 |
Outdoor Temperatures: | -20℃~45℃ |
Relative Humidity: | (15-95)%RH |
Noise (dB): | ≤55 |
Base Parameter: |
BT F22.960. C |
Nominal Voltage: |
50.4 DCV |
Nominal Capacity: |
19.6Ah |
Rate Capacity |
19Ah(@1C/25℃ Discharge) |
Energy |
960Wh |
Continuous Charge Current |
4A |
Charging time |
6.5 with 4A Charger |
Storage( At 35% SOC &-10~35℃) |
6 Months (need to charge) |
Cycle Life |
600 (70%SOC(@25±5°C, Charge @0.2C and discharge@0.5C)) |
Riding Distance |
Minimum 80km( 1000W motor) |
Dimension(L*W*H) |
375*100*149mm(±1mm) |
Weight |
Appr. 6.0 KG |
Charger |
Special 5P charger |
Certification |
UL/UN38.3/MSDS/13849 |
Warranty |
12 Months |
Q: How do I know whether this kit will be suitable for my bike?
A: The kit will only suitable for the bike≥27.5inch
(The upper area of downtube shall have a motion range of 390mm in length and 160mm in height for battery installation)
Q: Can I buy the battery from other sellers to match the motor to use?
A: This New M325 & M625 motor is only suitable for the BAFANG 50.4V battery, if you use another type of battery, it will not suitable.