1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your BAFANG BBS02B 48V 750W 100MM Mid Drive Ebike Conversion Kit. Please read this manual thoroughly before attempting installation or operation to ensure proper function and safety. This kit is designed to convert a standard bicycle into an electric bicycle, offering enhanced power and riding versatility.
2. Product Overview and Components
The BAFANG BBS02B 48V 750W Mid Drive Ebike Conversion Kit includes the following main components:
- Mid-drive motor (BBS02B 48V 750W)
- Brake levers or brake sensors
- Thumb throttle
- Chainring wheel
- Crank arms
- LCD display (optional, various models available)
- Battery and charger (optional, not included in all kits)
- Speed sensor and magnets
- 1T4 wire harness
- Locknut and other necessary accessories (e.g., ebike tool, headlight, stickers, power extension cable, long bolt and gasket for BB100mm)
Figure 2.1: Overview of the BAFANG BBS02B 48V 750W Mid Drive Ebike Conversion Kit components, including the motor, display, battery (optional), brake levers, chainring, and various cables and tools.
3. Compatibility and Fitment
This motor kit is designed for bicycles with a 100MM bottom bracket. It is crucial to verify your bicycle's bottom bracket dimensions before installation. The inner diameter of the bottom bracket should be between 34-36mm. If your bottom bracket size is between 80-105mm, an extra washer may be required for proper fitment. The kit is compatible with various bicycle types, including fat bikes, mountain bikes, and road bikes.
Figure 3.1: Guide for measuring your bicycle's bottom bracket width and inner diameter to ensure compatibility with the BAFANG mid-drive motor kit. The standard size is 100mm, with an inner diameter of 34-36mm.
Figure 3.2: Detailed specifications and dimensions for the BAFANG BBS02B 48V 750W 100MM motor, including rated voltage, rated power, suitable bottom bracket size (85-105mm), max torque (120 N.m), max climbing angle (30-35°), noise grade (50-55dB), weight (4.3KG), and waterproof rating (IP65).
4. Setup and Installation
The installation of the BAFANG mid-drive motor kit requires mechanical aptitude and specific tools. It is recommended to refer to the detailed video tutorials available on platforms like YouTube for a step-by-step guide. A general overview of the wiring is provided below.
4.1 Wiring Diagram
The wiring diagram illustrates the connections between the motor, battery, display, sensors, and other accessories. Ensure all connections are secure and correctly aligned according to the diagram.
Figure 4.1: Comprehensive wiring diagram for the BAFANG mid-drive motor kit, showing connections for the motor, battery, display, brake levers/sensors, throttle, speed sensor, and optional accessories like headlights. Note: Only batteries with BAFANG communication protocol support direct communication; otherwise, standard interfaces are used.
4.2 Pre-Installation Checklist
- Verify bottom bracket dimensions.
- Ensure all components listed in Section 2 are present.
- Gather necessary tools (crank puller, bottom bracket removal tool, wrench, etc.).
- Clean the bicycle's bottom bracket area.
5. Operating Instructions
The BAFANG ebike conversion kit offers three primary riding modes:
- E-bike Mode: Utilizes the motor's power via the thumb throttle for propulsion without pedaling.
- Pedal Assisted Bicycle Mode (PAS): The motor provides assistance as you pedal, with adjustable assist levels.
- Push Assisted Bicycle Mode: Provides low-speed assistance for walking the bike.
5.1 BAFANG High-Tech Display Operation
The BAFANG display allows you to monitor ride metrics, customize motor settings, and access navigation features. Specific display models may vary in features and interface.
Figure 5.1: Comparison of various BAFANG ebike display models (EKD01, DPC010.CB, DPC080.C, VD03, VD618, P860ML) detailing screen size, holder size, PAS levels, advanced password, navigation function, automatic headlight, and USB charger type.
5.2 Battery Information
The battery (if purchased with the kit) is crucial for the e-bike's operation. Ensure it is fully charged before use. Refer to the battery specifications for charging times and range estimates.
Figure 5.2: Specifications for various BAFANG ebike battery models (48V 13Ah, 48V 17.5Ah, 48V 19.2Ah, 48V 20Ah, 52V 20Ah, Rear Rack Battery 48V 17.5Ah) including battery model, cell type, BMS max protection current, USB port availability, weight, cycle life, and charger compatibility.
6. Maintenance
Regular maintenance is essential to ensure the longevity and optimal performance of your BAFANG ebike kit.
- Cleaning: Keep the motor and electrical components clean and free from dirt and debris. Avoid high-pressure washing directly on electrical parts.
- Connections: Periodically check all electrical connections for tightness and corrosion.
- Lubrication: Lubricate the chain and other moving parts of your bicycle regularly.
- Battery Care: Store the battery in a cool, dry place and charge it regularly, even when not in use, to maintain its health. Avoid fully discharging the battery.
- Brakes: Ensure brake levers and sensors are functioning correctly for safe operation.
7. Troubleshooting
This section addresses common issues you might encounter with your BAFANG ebike conversion kit.
- Motor Not Engaging: Check battery connection, ensure the display is on, and verify all cables are securely connected. Check for error codes on the display.
- No Pedal Assist: Ensure the speed sensor is correctly installed and aligned with the magnet on the wheel. Check PAS level settings on the display.
- Display Not Turning On: Check battery charge, battery connection, and the main power cable to the display.
- Unusual Noises: Inspect the motor for any loose parts or obstructions. Ensure the chainring is securely fastened.
- Reduced Range: This could indicate a low battery charge, an aging battery, or riding conditions (e.g., steep hills, heavy loads, high assist levels).
For persistent issues, consult the BAFANG support resources or a qualified ebike technician.
8. Specifications
| Specification | Value |
|---|---|
| Item Model Number | M315 MM G340.750.C |
| Brand | BAFANG |
| Motor Type | Mid Drive |
| Rated Power | 750 Watts |
| Rated Voltage | 48 Volts |
| Max Torque | 100-120 N.m |
| Max Speed (Assisted) | Up to 35 Miles per Hour |
| Bottom Bracket Compatibility | 100MM (fits 80-105mm with adapter/washer) |
| Waterproof Rating | IP65 |
| Weight | Approx. 4.3 KG (motor only) |
9. Warranty and Support
For warranty information and technical support, please refer to the official BAFANG website or contact the seller directly. Protection plans may be available for purchase separately to extend coverage beyond the standard manufacturer's warranty.
For additional resources, you may refer to the official user guide PDF available at: BAFANG User Guide (PDF)
