1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your BAFANG Hub and Front Motors. BAFANG motors are designed for a wide range of electric bicycle applications, offering reliable and efficient performance.
BAFANG motors feature a gearless drive brushless design, IPX5 waterproofing, and CE certification, ensuring durability and compliance with safety standards. They are universally compatible and designed for straightforward installation.
These motors are versatile and can be integrated into various bicycle types, including mountain bikes, road bikes, tricycles, cargo bikes, and city bikes.
2. Setup and Installation
Proper installation is crucial for the safe and efficient operation of your BAFANG motor. Please follow these guidelines carefully.
2.1 Dropout Compatibility
Ensure your bicycle frame has the correct dropout size for the motor type you are installing.
- Front Hub Motors: Typically fit 100mm front dropout sizes (compatible with 97-103mm).
- Rear Hub Motors: Compatible with various rear dropout sizes, including 135mm, 138mm (fitting 135-142mm), and 178mm (fitting 175-180mm).
- All motors feature a 10mm axle diameter.
2.2 Brake and Cassette Compatibility
Most BAFANG hub motors are compatible with both disc brakes and V-brakes. Rear hub motors are designed to fit cassettes up to 10-speed.
- Disc Brake Type: Features a diagonal hole distance of 44mm and an adjacent hole distance of 22mm.
- Cassette Type: Compatible with cassettes up to 10-speed.
2.3 Wiring Connection
All BAFANG hub motors come with a 9-PIN motor cable for connection to your e-bike system. Refer to the specific motor diagrams for detailed wiring color codes and dimensions.
3. Operating Instructions
Once installed, your BAFANG motor operates as part of your e-bike system. Refer to your e-bike's main controller and display manual for specific power-on, assist level selection, and throttle (if applicable) operation.
- Power On/Off: Typically controlled via the e-bike's display unit.
- Assist Levels: Adjust pedal assist levels through the display to control motor output.
- Speed: Max speeds vary by motor model and local regulations (e.g., 40-45 KM/h or 45-50 KM/h).
- Operating Temperature: Ensure operation within the specified range of -20°C to 45°C.
4. Maintenance
Regular maintenance ensures the longevity and optimal performance of your BAFANG motor.
- Cleaning: Keep the motor housing clean from dirt and debris. Use a damp cloth; avoid high-pressure washing directly on the motor.
- Connections: Periodically check all electrical connections, especially the 9-PIN motor cable, to ensure they are secure and free from corrosion.
- Waterproofing: The motor has an IPX5 waterproof rating, meaning it is protected against low-pressure water jets from any direction. However, avoid submerging the motor in water.
- Noise: The motor is designed for low noise operation (<55dB). If unusual noises occur, consult the troubleshooting section or contact support.
- Spokes: Ensure spokes are properly tensioned, especially after initial installation and during regular bike maintenance.
5. Troubleshooting
If you encounter issues with your BAFANG motor, consider the following common problems and solutions:
- Motor Not Engaging:
- Check all cable connections, especially the 9-PIN motor cable, for looseness or damage.
- Ensure the battery is charged and properly connected.
- Verify the e-bike display is powered on and an assist level is selected.
- Inspect the brake levers; some systems have cut-off switches that prevent motor engagement if brakes are applied.
- Unusual Noise from Motor:
- Check for loose spokes or objects caught in the wheel.
- Ensure the motor is securely mounted in the dropouts.
- If the noise persists and is internal, contact technical support.
- Reduced Performance:
- Check battery charge level.
- Ensure tire pressure is correct.
- Verify that the motor is not overheating (operating temperature -20°C ~ 45°C).
For complex issues, it is recommended to consult a qualified e-bike technician or contact BAFANG technical support.
6. Specifications
The following table provides detailed parameters for various BAFANG Hub Motors:
| Parameter | H400B Front Motor (500W) | H400B Rear Motor (500W) | H640 Rear Motor (750W) | H550 Rear Motor (1000W) |
|---|---|---|---|---|
| BAFANG Model | H400B | H400B | H640 | H550 |
| Model No. | FM G020.500.D | RM G020.500.DC | RM G0900.750.DC | RM G062.1000.DC |
| Rated Power | 500W | 500W | 750W | 1000W |
| Rated Voltage | 48V | 48V | 48V | 48V |
| Max Speed | 40-45KM/h | 40-45KM/h | 45-50KM/h | 45-50KM/h |
| Rated RPM | 340±15 | 340±15 | 360±10 | 440±10 |
| Max Torque | 65N.m | 65N.m | 80N.m | 85N.m |
| Motor Cable | 9 PIN | 9 PIN | 9 PIN | 9 PIN |
| Spokes Holes | 36H*12G | 36H*12G | 36H*12G | 36H*12G |
| Brake Type | Disc Brake / V Brake | Disc Brake / V Brake | Disc Brake / V Brake | Disc Brake |
| Efficiency | >80% | >80% | >80% | >80% |
| Noise Grade | <55dB | <55dB | <55dB | <55dB |
| Waterproof | IPX5 | IPX5 | IPX5 | IPX5 |
| Operation Temperature | -20°C ~ 45°C | -20°C ~ 45°C | -20°C ~ 45°C | -20°C ~ 45°C |
All BAFANG products are CE certified, ensuring they meet European safety, health, and environmental protection requirements.
7. Warranty and Support
BAFANG products come with a one-year warranty. In case of any issues or technical questions, professional technical support is available.
BAFANG has established a global service network to provide timely assistance:
For technical support or warranty claims, please contact your authorized BAFANG dealer or the Greenergy Europe Store, which is an official authorized agent for BAFANG products. They can provide assistance and help resolve any problems you may encounter.
8. User Tips
- Wheel Size Compatibility: BAFANG motors are compatible with a wide range of wheel sizes, including 29-inch wheels. Always ensure the motor selected matches your wheel size and frame.
- Cable Connections: The motor comes with a 9-pin connector. Always ensure this connector is fully seated and secured to prevent intermittent power issues.
