1. ആമുഖം
This manual provides detailed instructions for the installation, operation, and maintenance of your BAFANG BBS02B 36V/48V 500W Mid Drive Ebike Motor 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 range.
2. ഉൽപ്പന്നം കഴിഞ്ഞുview
The BAFANG BBS02B mid-drive motor kit is a comprehensive solution for converting a bicycle into an e-bike. It features a 500W motor with CAN protocol for stable performance and includes essential components for conversion.
2.1 പ്രധാന സവിശേഷതകൾ
- മോട്ടോർ തരം: Mid-drive motor, 500W, 36V/48V compatible.
- നിയന്ത്രണ സംവിധാനം: Upgraded CAN protocol for enhanced stability and smoother operation.
- പ്രകടനം: Smooth, controlled starts with throttle-responsive acceleration. Adjustable speed limits for Pedal Assist and Throttle modes.
- അനുയോജ്യത: Designed for bicycles with a 68-73mm bottom bracket.
- ടോർക്ക്: Maximum torque of 100 N.m.
- കാര്യക്ഷമത: Greater than 80%.
2.2 കിറ്റ് ഘടകങ്ങൾ
The conversion kit typically includes the following items. Refer to the packing list image for visual confirmation.

ചിത്രം 2.2.1: Packing list showing all included components such as the mid motor, display, throttle, brake sensors/levers, chainring, cranks, speed sensor, 1T4 wire, nuts, headlight, and tools.
- BAFANG BBS02B Mid-drive Motor (36V/48V 500W)
- LCD Display (optional, various models available)
- Brake Levers or Brake Sensors (for hydraulic brakes)
- തമ്പ് ത്രോട്ടിൽ
- Chainring Wheel (various tooth counts available)
- ക്രാങ്ക് ആയുധങ്ങൾ
- Speed Sensor and Magnets
- 1T4 Wire Harness
- Lock Nuts and Fasteners
- ഹെഡ്ലൈറ്റ് (ഓപ്ഷണൽ)
- Crank Removal Tool (optional)
- XT60 Cable (optional)
Note: An optional battery and charger are required for operation and are typically sold separately. Various battery types are compatible, including Hailong, G80 Shark, Yingwu Shark, Rear Rack, and U004 Triangle batteries, with different capacities and cell types.

ചിത്രം 2.2.2: കഴിഞ്ഞുview of various optional battery types and their specifications, including Hailong, G80 Shark, Yingwu Shark, Rear Rack, and U004 Triangle batteries.
3. സജ്ജീകരണവും ഇൻസ്റ്റാളേഷനും
Proper installation is crucial for the safe and efficient operation of your e-bike. This kit is designed for relatively easy installation with basic tools.
3.1 Bottom Bracket Compatibility
Before installation, verify that your bicycle's bottom bracket width is compatible with the BAFANG BBS02B motor. This kit is designed to fit standard 68-73mm bottom brackets.
- Measure the width of your bike's bottom bracket shell using calipers or a ruler.
- Ensure the measurement falls within the 68-73mm range.

ചിത്രം 3.1.1: Visual guide on measuring the bottom bracket shell to confirm compatibility with the BAFANG mid-drive motor.
3.2 ഇൻസ്റ്റലേഷൻ ഘട്ടങ്ങൾ (പൊതു ഗൈഡ്)
ഇനിപ്പറയുന്ന ഘട്ടങ്ങൾ ഒരു പൊതു ഓവർ നൽകുന്നുview. Always refer to the detailed wiring diagram and any specific instructions provided with your kit.
- സൈക്കിൾ തയ്യാറാക്കുക: Remove the existing crankset, bottom bracket, and any front derailleur. Clean the bottom bracket shell.
- Mount the Motor: Insert the BAFANG mid-drive motor into the bottom bracket shell. Secure it using the provided lock nuts and plates.
- Install Chainring and Cranks: Attach the new chainring to the motor and then install the crank arms.
- ഡിസ്പ്ലേ ഇൻസ്റ്റാൾ ചെയ്യുക: Mount the LCD display on the handlebars in a convenient viewസ്ഥാനം.
- ത്രോട്ടിൽ ഇൻസ്റ്റാൾ ചെയ്യുക: Mount the thumb throttle on the handlebars.
- Install Brake Levers/Sensors: Replace existing brake levers with the e-bike specific ones, or install brake sensors if using hydraulic brakes.
- സ്പീഡ് സെൻസർ ഇൻസ്റ്റാൾ ചെയ്യുക: Attach the speed sensor to the chainstay and the magnet to a spoke on the rear wheel, ensuring proper alignment and gap.
- വയറിംഗ് കണക്ഷനുകൾ: Connect all components to the 1T4 wire harness and then to the motor. Ensure all connections are secure and waterproof. Refer to the wiring diagram below.
- ബാറ്ററി ഇൻസ്റ്റാളേഷൻ: Mount your chosen battery securely to the bike frame (e.g., bottle cage mounts, rear rack) and connect it to the motor's power cable.
- കേബിൾ മാനേജുമെന്റ്: Secure all cables neatly along the frame using cable ties to prevent snagging or damage.

ചിത്രം 3.2.1: Simplified wiring diagram illustrating connections between the motor, display, throttle, brake sensors, and battery. Note: Brake lever is default; contact seller for brake sensor if needed.
4. പ്രവർത്തന നിർദ്ദേശങ്ങൾ
Once installed, your BAFANG mid-drive motor kit offers various modes to enhance your cycling experience.
4.1 LCD Display Functions (500C Display Exampലെ)
The LCD display provides essential information and allows you to control the motor's settings. The 500C display typically features 3, 5, or 9 levels of pedal assist.

ചിത്രം 4.1.1: The BAFANG 500C display interface, highlighting indicators for power, speed, mileage, battery level, PAS level, error codes, headlight status, and brake status.
- പവർ സൂചകം: Shows the current power output.
- സ്പീഡ് ഡിസ്പ്ലേ: Current riding speed (KM/H or MPH).
- Mileage Indicator: യാത്രാ ദൂരവും ആകെ ഓഡോമീറ്ററും പ്രദർശിപ്പിക്കുന്നു.
- ബാറ്ററി സൂചകം: Shows remaining battery charge level.
- PAS (പെഡൽ അസിസ്റ്റ് സിസ്റ്റം) ലെവൽ: Adjusts the level of motor assistance (0-3, 0-5, or 0-9).
- പിശക് സൂചകം: Alerts to system malfunctions.
- Headlight Power On: Indicates if the connected headlight is active.
- Brake Indicator: Shows when brakes are applied.
4.2 റൈഡിംഗ് മോഡുകൾ
The BAFANG BBS02B kit supports various riding modes to suit different terrains and preferences.

ചിത്രം 4.2.1: Illustration of different e-bike riding modes (Ebike Mode, Pedal Assistance Mode, Push Assistance Mode) and their application across various terrains like mountain roads, city roads, beach roads, and snow roads.
- Ebike Mode (Throttle): Provides power directly via the thumb throttle, allowing for propulsion without pedaling. Useful for quick acceleration or resting.
- Pedal Assistance Mode (PAS): The motor provides assistance proportional to your pedaling effort. The level of assistance can be adjusted via the display. This mode is ideal for extending range and reducing fatigue.
- Push Assistance Mode: A low-speed assist function, typically activated by holding a button on the display, which helps when walking the bike uphill or through difficult terrain.
5. പരിപാലനം
Regular maintenance ensures the longevity and optimal performance of your BAFANG mid-drive motor kit.
- വൃത്തിയാക്കൽ: Keep the motor, display, and electrical connections clean. Use a damp തുണി; ഉയർന്ന മർദ്ദത്തിൽ ഇലക്ട്രിക്കൽ ഘടകങ്ങളിൽ നേരിട്ട് കഴുകുന്നത് ഒഴിവാക്കുക.
- ഇലക്ട്രിക്കൽ കണക്ഷനുകൾ: Periodically check all electrical connections for tightness and corrosion. Ensure they are securely plugged in.
- ബാറ്ററി കെയർ: If using an optional battery, follow the manufacturer's instructions for charging, storage, and discharge cycles. Avoid extreme temperatures.
- ചെയിനും ഡ്രൈവ്ട്രെയിനും: Keep your chain clean and lubricated. Inspect the chainring for wear.
- ഫാസ്റ്റനറുകൾ: Regularly check all bolts and nuts, especially those securing the motor and other components, to ensure they are tight.
- General Bike Maintenance: Continue with regular bicycle maintenance, including tire pressure, brake function, and gear adjustments.
6. പ്രശ്നപരിഹാരം
This section addresses common issues you might encounter. For complex problems, contact customer support.
| പ്രശ്നം | സാധ്യമായ കാരണം | പരിഹാരം |
|---|---|---|
| Motor not starting/no power | Battery low or disconnected; loose electrical connections; display off; brake sensor engaged. | Check battery charge and connection; ensure all cables are secure; turn on display; check if brake levers are fully released. |
| ഡിസ്പ്ലേ ഓണാക്കുന്നില്ല | Battery low or disconnected; loose display cable; faulty display. | Check battery and connections; ensure display cable is fully inserted; if problem persists, contact support. |
| Motor cuts out intermittently | Loose connections; overheating; faulty speed sensor. | Check all connections; allow motor to cool down if ridden hard; verify speed sensor alignment. |
| ഡിസ്പ്ലേയിൽ പിശക് കോഡ് | നിർദ്ദിഷ്ട സിസ്റ്റം തകരാറ്. | Consult the display's specific manual for error code meanings. Often requires checking specific components or connections. |
7 സ്പെസിഫിക്കേഷനുകൾ
Detailed technical specifications for the BAFANG BBS02B 500W Mid Drive Motor.

ചിത്രം 7.1.1: Technical diagram and table detailing the dimensions and performance specifications of the BAFANG BBS02B mid-drive motor.
| പരാമീറ്റർ | മൂല്യം |
|---|---|
| മോട്ടോർ മോഡൽ | ബിബിഎസ്02ബി |
| BAFANG Model Name | MM G340.500.C |
| ശക്തി | 500W |
| വാല്യംtage | 48V (also compatible with 36V) |
| കൺട്രോളർ കറന്റ് | 48V 18A |
| കാര്യക്ഷമത | > 80% |
| മാക്സ് ടോർക് | 100 എൻഎം |
| വാട്ടർപ്രൂഫ് ഗ്രേഡ് | IPX5 |
| ലോഡ് സ്പീഡ് ഇല്ല (RPM) | 120 |
| Load Speed (RPM) | 113 |
| PAS സെൻസർ | സ്പീഡ് സെൻസർ |
| റിഡക്ഷൻ റേഷ്യോ | 1 : 21.9 |
| Net Motor Weight | ഏകദേശം 4.24 കിലോ |
| Bracket Bottom Length | 68 മി.മീ |
| Motor Operation Temperature | -20°C~45°C |
8. വാറൻ്റിയും പിന്തുണയും
BAFANG is committed to providing quality e-bike accessories. For specific warranty terms and conditions, please refer to the documentation included with your purchase or contact the seller directly. In case of technical issues or questions not covered in this manual, please reach out to the authorized BAFANG dealer or the point of purchase for assistance.





