1. Introducció
This manual provides comprehensive instructions for the installation, operation, and maintenance of your BAFANG HD 1000W Mid Drive Ebike Conversion Kit. Please read this manual thoroughly before installation and use to ensure safe and optimal performance. Proper understanding and adherence to these guidelines will help maximize the lifespan and efficiency of your e-bike system.
2. Informació de seguretat
2.1 Pautes generals de seguretat
- Always wear a helmet and appropriate safety gear when riding your e-bike.
- Ensure all components, especially the motor, battery, and display, are securely fastened before each ride.
- Do not operate the e-bike in heavy rain or immerse electrical components in water. While the wiring is waterproof, prolonged exposure to extreme wet conditions should be avoided.
- Familiarize yourself with local e-bike regulations and traffic laws.
- Perform regular checks on brakes, tires, and all electrical connections to ensure they are in good working order.

Avoid riding your e-bike in heavy rain to protect electrical components and ensure rider safety. The image shows a person riding a bike in the rain, indicating conditions to avoid.
2.2 Battery Safety (If Applicable)
- Use only the specified charger provided with your battery. Using an incompatible charger can cause damage or fire.
- No curtcircuiteu els terminals de la bateria.
- Emmagatzemeu la bateria en un lloc fresc i sec, lluny de la llum solar directa i de temperatures extremes.
- Do not disassemble, puncture, or expose the battery to fire or excessive heat.
3. Contingut del paquet
Please verify that all items listed below are included in your package before beginning installation.

This image displays the main components of the BAFANG HD 1000W Mid Drive Kit, including the motor, optional battery, C18 display, and various accessories required for conversion.
- BAFANG BBS-HD 48V/52V 1000W Mid Drive Motor
- C18 Display (Optional, or other compatible display models)
- 46T Sprocket (approx. 16.5mm thickness, 18.7cm diameter)
- Crank Arms (Left and Right)
- Acelerador del polze
- Speed Sensor with Magnet
- E-Brake Levers (or Brake Sensors, depending on your selected option)
- Installation Screws and Nuts
- Cable Ties for cable management
- BBS Wrench for motor installation
- Centre Shaft Removal Tool
- Manual d'instal·lació (aquest document)
- Sticker (for product identification)
- (Optional) E-bike Battery and Charger (if purchased with the kit)
4. Configuració i instal·lació
4.1 Comprovació de compatibilitat
Before beginning the installation, it is crucial to ensure your bicycle's bottom bracket is compatible with the BAFANG mid-drive kit. The kit is designed to fit bottom bracket lengths of 68-73mm, 85-105mm, and 105-125mm, with an internal diameter of 33.5-36mm.

This image illustrates how to accurately measure your bike's bottom bracket shell width and internal diameter using calipers or a ruler to confirm compatibility with the BAFANG mid-drive motor. Ensure the chainring will not interfere with the chain stay.
4.2 Passos d'instal·lació anteriorsview
While detailed video guides are highly recommended and available online (e.g., YouTube), here is a general sequence of installation steps:
- Remove your bicycle's existing crankset and bottom bracket.
- Carefully insert the BAFANG mid-drive motor into the bottom bracket shell. Secure it firmly using the provided nuts and bolts.
- Attach the 46T sprocket to the motor and then install the crank arms.
- Mount the speed sensor on the rear chainstay, ensuring the magnet passes closely by it with each wheel rotation.
- Install the display unit onto your handlebars in a comfortable and visible position.
- Install the thumb throttle and the e-brake levers (or brake sensors) on the handlebars.
- Connect all electrical cables from the motor to the display, throttle, speed sensor, and brake levers. Ensure all waterproof connections are properly seated and sealed.
- Install the battery (if applicable) onto your bike frame and connect it to the motor's power cable.

This image shows the BAFANG mid-drive motor successfully installed on a bicycle, demonstrating its compact and integrated placement within the bottom bracket area.
4.3 Vídeo oficial del producte
This official video from Greenergia provides a visual overview of the BAFANG BBS HD motor, highlighting its features, seamless integration, and performance capabilities for various riding conditions.
5. Instruccions de funcionament
5.1 Display Operation (C18 Display)
The C18 display is your interface for controlling and monitoring your e-bike. It allows you to view riding data and adjust settings.

This image details the various indicators and information displayed on the C18 display, including current speed, battery level, ride time, trip distance, and error codes. It also shows the layout of control buttons.
- Encès/apagat: Press and hold the power button on the display to turn the system on or off.
- Assist Level Adjustment: Use the 'Up' and 'Down' buttons to cycle through the Pedal Assist System (PAS) levels (typically 0-9). Level 0 provides no assistance, while higher levels provide more motor power.
- Visualització d'informació: Short press the 'i' button to switch between different data displays such as Odometer, Trip Distance, Max Speed, and Average Speed.
- Control dels fars: Press the dedicated headlight button to turn on or off any integrated headlights connected to the system.
- Càrrega USB: The display features a USB output port (Type-C) which can be used to charge mobile devices in an emergency.
5.2 Modes de conducció
- Mode d'assistència al pedaleig (PAS): In this mode, the motor provides assistance as you pedal. The amount of assistance is determined by the selected PAS level. This mode is ideal for extending range and reducing effort.
- Mode d'acceleració: Use the thumb throttle to engage the motor and propel the bike without pedaling. This mode is useful for quick acceleration or when you need a burst of power.
- Mode d'assistència a la marxa: Hold the 'Down' button on the display to activate a low-speed assist, making it easier to push the bike when walking alongside it.
6. Manteniment
Regular maintenance is essential to ensure the longevity and optimal performance of your BAFANG mid-drive kit.
- Neteja regular: Keep the motor, battery, and all electrical connections clean and free of dirt, dust, and debris. Use a damp cloth for cleaning; avoid high-pressure water jets.
- Comproveu les connexions: Periodically inspect all electrical connections for tightness and signs of corrosion. Ensure waterproof connectors are properly seated to prevent moisture ingress.
- Lubricació: Regularly lubricate the chain and other moving parts of your bicycle according to standard bicycle maintenance practices.
- Inspecció de frens: Check brake pads and cables for wear and proper function. Ensure the e-brake cut-off sensors are working correctly.
- Cura de la bateria:
- Charge the battery regularly, even when not in use, to maintain its health. Avoid leaving it fully discharged for extended periods.
- Eviteu descarregar completament la bateria sempre que sigui possible.
- Store the battery in a moderate temperature environment (ideally between 10°C and 25°C or 50°F and 77°F).
7. Solució De Problemes
This section addresses common issues you might encounter with your BAFANG mid-drive kit.
| Problema | Causa possible | Solució |
|---|---|---|
| El motor no ajuda | Loose electrical connection, low battery, speed sensor misalignment, brake lever engaged | Check all cable connections, charge battery, ensure speed sensor is aligned with magnet, release brake levers |
| La pantalla no s'encén | Battery not connected, faulty display cable, main power switch off | Check battery connection, inspect display cable for damage, ensure battery's main power switch is on |
| Codi d'error a la pantalla | Specific component malfunction (e.g., motor, controller, sensor) | Note the error code and refer to the display's specific error code list (if available in a separate manual) or contact customer support for diagnosis. |
| Abast o potència reduïts | Low tire pressure, improper gear usage, aging battery, riding uphill frequently | Inflate tires to recommended pressure, use appropriate gears for terrain, consider battery replacement if significantly old, reduce heavy loads |
For more complex issues or if troubleshooting steps do not resolve the problem, please contact BAFANG customer support.
8. Especificacions
Key technical specifications for the BAFANG HD 1000W Mid Drive Ebike Conversion Kit:
| Característica | Detall |
|---|---|
| Marca | Bafang |
| Nom del model | M615 MM G320.1000.C |
| Voltage | 48 Volts (compatible with 52V systems) |
| Horsepower / Power Output | 1000 watts |
| Material | Alumini |
| Max Torque | 160 Nm |
| Bottom Bracket Compatibility | 68-73mm, 85-105mm, 105-125mm (length); 33.5-36mm (internal diameter) |
| Sprocket Included | 46T |
| Tipus de visualització | C18 (Optional, other models available) |
| Tipus d’acceleració | Acelerador del polze |
| Fabricant | Bafang Electric (Suzhou) Co., Ltd. |
9. Garantia i Suport
9.1 Informació de la garantia
The BAFANG HD 1000W Mid Drive Kit comes with the following warranty and service terms:
- Política de devolució: 30 Days return period from the date of purchase.
- Maintenance & Repair Service: 365 days of maintenance and repair service.
- Guia tècnica: Forever technical guidance is provided for the product.
9.2 Atenció al client
For technical assistance, warranty claims, or any other inquiries regarding your BAFANG mid-drive kit, please contact our dedicated customer support team.
Correu electrònic: ga_sale_service@163.com

Our customer support team is ready to assist you with any questions or issues you may encounter, providing reliable technical guidance and service.





