BAFANG M325 M625 Mid Drive Kit

1. Introduction

This manual provides essential information for the installation, operation, and maintenance of your BAFANG M325 or M625 Mid Drive Ebike Conversion Kit. Please read this manual thoroughly before installation and use to ensure proper function and safety.

2. Safety Information

Always prioritize safety when installing and operating your ebike conversion kit. Failure to follow these guidelines may result in injury or damage to the product.

• Ensure all connections are secure and waterproof before riding, especially in wet conditions.
• Do not attempt to modify the motor or battery system. Unauthorized modifications can lead to malfunction and void the warranty.
• Wear appropriate safety gear, including a helmet, when riding your ebike.
• Regularly inspect your ebike for any loose parts, damaged wires, or unusual noises.
• Avoid riding in heavy rain or submerging the motor in water.

Avoid riding your ebike in heavy rain to prevent damage to electrical components.

3. What's in the Box

Your BAFANG Mid Drive Kit package includes the following components:

Overview of the BAFANG M625 Mid Drive Kit components.

• BAFANG M325 or M625 Mid Drive Motor
• Battery (Optional, depending on package)
• Ebike Display (Optional, various models available)
• Throttle
• Brake Levers (or Brake Sensors, depending on bike compatibility)
• Speed Sensor
• Front Lamp
• Rear Lamp
• 1T4 Cable
• Installation Manual
• Crank Arms
• Wrench
• Mounting Loop
• Tool Kit
• Installation Screws

4. Compatibility

Ensure your bicycle meets the following requirements for proper installation and function of the BAFANG Mid Drive Kit.

4.1 Motor Compatibility (Bottom Bracket)

The BAFANG M325/M625 motor is designed for bikes with a bottom bracket (BB) shell diameter of 34-36mm (1.34"-1.42") and a length of 68-73mm (2.68"-2.87").

Measure your bike's bottom bracket dimensions to confirm compatibility.

Conditions NOT suitable for BAFANG BBS Motor:

• Bottom brackets with an inner diameter less than 33.5mm or greater than 36mm.
• Bottom brackets with a length outside the 68-73mm range.
• Bikes with a belt drive chainring.
• Bikes with a coaster brake.

Examples of incompatible bike setups for the BAFANG mid-drive motor.

4.2 Battery Compatibility

The updated M625 motor removes communication protocol restrictions, allowing connection to various brand batteries. You can use downtube or rear rack batteries.

For Downtube Shark Battery:

Use a cutout template to verify downtube battery fitment.

For Rear Rack Battery:

• Check for existing installation screw holes on your bike's rear fork.
• Verify the size of your rear fork, ensuring it accommodates the battery.

Check your bike's rear fork for compatibility with a rear rack battery.

4.3 Brake System Compatibility

The kit typically includes default brake levers. If your bike uses a different brake system (e.g., hydraulic disc brake or shift integrated brake handle), you may need to contact customer support for a compatible brake sensor.

Brake system compatibility with the included brake levers.

5. Setup and Installation

The BAFANG ebike conversion kit is designed for straightforward installation. An installation video and detailed instruction manual are provided with your kit to guide you through the process.

Overview of the installation process for the BAFANG mid-drive kit.

General Installation Steps:

1. Remove existing bottom bracket and crankset from your bicycle.
2. Install the BAFANG mid-drive motor into the bottom bracket shell, ensuring it is securely fastened with the provided hoop design.
3. Attach the crank arms and chainring to the motor.
4. Mount the display, throttle, and brake levers (or sensors) onto the handlebars.
5. Install the speed sensor on the rear wheel and align the magnet.
6. Connect all electrical components using the 1T4 cable and other wiring harnesses. Ensure all connections are firm and properly routed.
7. Mount the battery securely to your bike frame (downtube or rear rack, depending on battery type).
8. Connect the battery to the motor system.
9. Perform a functional test of all components before riding.

6. Operating Modes

The BAFANG ebike kit offers multiple riding modes to suit various preferences and terrains:

• E-bike Mode (Pure Electric): Provides power solely from the motor via the throttle, without requiring pedal input.
• Pedal Assisted Mode (PAS): The motor provides assistance as you pedal. The level of assistance can typically be adjusted via the display.
• Walk Assist Mode: Provides low-speed motor assistance (typically up to 6 km/h or 3.7 mph) to help you push the bike when walking alongside it.
• Pure Pedal Bicycle Mode: The motor provides no assistance, and the bike functions as a traditional bicycle.

Visual representation of the different riding modes and key connections.

6.1 BAFANG High-Tech Display

The BAFANG e-bike display provides crucial ride information and allows for customization. Features may vary by display model:

• Personalized Dashboard: Choose from different themes.
• Key Metrics: Track ride time, calories burned, cadence, speed, distance, and battery level.
• App Connectivity: Share data and access additional features via a compatible app (e.g., BAFANG GO+ or BIKEGO+).
• Navigation Mirroring: Some displays can mirror phone navigation.

Comparison of various BAFANG ebike display models and their features.

7. Maintenance

Regular maintenance ensures the longevity and optimal performance of your BAFANG ebike kit.

• Cleaning: Wipe down the motor and components with a damp cloth. Avoid high-pressure washing directly on electrical parts.
• Connections: Periodically check all electrical connections for tightness and corrosion.
• Lubrication: Keep your chain and other moving parts lubricated as per standard bicycle maintenance.
• Battery Care: Store the battery in a cool, dry place. Avoid fully discharging the battery and charge it regularly, even when not in use.
• Professional Inspection: Consider having your ebike inspected by a qualified technician annually.

Regular maintenance helps ensure the longevity of your ebike kit.

8. Troubleshooting

If you encounter issues with your BAFANG ebike kit, refer to the following common problems and solutions:

• Motor Not Engaging:
  • Check battery connection and charge level.
  • Ensure all cables are securely connected.
  • Verify the display is powered on and showing no error codes.
• Display Not Turning On:
  • Check battery connection.
  • Inspect the display cable for damage.
• Inconsistent Pedal Assist:
  • Check the speed sensor and magnet alignment.
  • Ensure the PAS level is set correctly on the display.
• Unusual Noises from Motor:
  • Stop riding immediately.
  • Check for loose components or debris near the motor.
  • Contact customer support if the noise persists.

For complex issues or error codes displayed on your screen, consult the detailed troubleshooting section in your kit's specific installation manual or contact BAFANG customer support.

9. Specifications

9.1 Motor Specifications

9.2 Battery Specifications (Examples)

10. Warranty and Support

BAFANG is committed to customer satisfaction and provides comprehensive support for your product.

• Return Policy: 30-day return period from the date of purchase.
• Repair Service: One-year repair service for manufacturing defects.
• Guidance Service: Lifetime guidance service for technical assistance and inquiries.
• Contact Support: For any issues or questions, please contact us via email at ga_sale_service@163.com.

Contact customer support for assistance.