BAFANG BBS UART 48V 500W / 750W Mid Drive E-Bike Conversion Kit
Convert your compatible bicycle into an electric bike with the BAFANG BBS02B UART mid-drive motor conversion kit.
This configuration is designed for bicycles with a 68mm bottom bracket and is available in 48V 500W and 48V 750W power options. Display options include C965, 750C-BLE and 860C. The kit is configured with a 44T chainring.
Key Features
• BAFANG BBS02B mid-drive motor
• UART communication protocol
• Rated voltage: 48V
• Motor power options: 500W / 750W
• Bottom bracket size: 68mm
• Suitable for approximately 68–73mm bottom bracket widths
• Display options: C965 / 750C-BLE / 860C
• Chainring: 44T
• Mid-drive design for efficient power transfer
• Compatible with brake cut-off system
• Compatible with thumb throttle
• Compatible with speed sensor
• Gear sensor connection available
• Front light connection available
• Suitable for compatible city, hybrid, mountain and trekking bicycles
Power Options
48V 500W
• Suitable for everyday commuting and recreational riding
• Balanced power output for compatible bicycles
• Suitable for riders looking for efficient daily electric assistance
48V 750W
• Higher power output for stronger acceleration and climbing performance
• Suitable for compatible mountain, trekking and higher-load applications
Bottom Bracket Compatibility
68mm Bottom Bracket
• Suitable for bicycles with approximately 68–73mm bottom bracket width
• Please measure your bicycle bottom bracket width before ordering
• Please confirm frame and chainstay clearance before installation
Display Options
C965 Display
• Segment LCD display
• Displays speed
• Displays battery level
• Displays pedal assist level
• Displays riding distance
• Light control function
• Compatible with BAFANG UART motor systems
750C-BLE Display
• Color display
• Bluetooth-enabled display
• Displays speed, battery information and riding data
• Compatible with BAFANG UART motor systems
860C Display
• Color display
• Large easy-to-read screen
• Displays speed, battery level, assist level and riding information
• Compatible with BAFANG UART motor systems
44T Chainring
This kit is configured with a 44T chainring.
According to the chainring specification, the 44T chainring has an approximate diameter of 18.3 cm and is suitable for compatible bicycles, including many 700C / 28-inch applications.
Please confirm frame and chainstay clearance before ordering.
Connection System
The motor system provides connections for:
• Display
• Thumb throttle
• Brake levers or brake sensors
• Speed sensor
• Gear sensor
• Battery
• Front light
Please confirm all connector types before installation.
Main Kit Components
Depending on the selected package, the kit may include:
• BAFANG BBS02B 48V 500W or 750W mid-drive motor
• C965, 750C-BLE or 860C display
• 44T chainring
• Crank arms
• Brake levers or brake sensors
• Thumb throttle
• Speed sensor
• Main wiring harness
• Mounting hardware
• Installation accessories
Please note:
Battery, front light and gear sensor require additional purchase unless they are specifically included in your selected package.
Cable Connections
The wiring system provides connections for:
• Main wiring harness
• Battery
• Speed sensor
• Gear sensor
• Front light
• Display
• Brake system
• Thumb throttle
Important Compatibility Notice
Before ordering, please confirm:
• Battery voltage: 48V
• Motor power: 500W or 750W
• Bottom bracket width: 68mm
• Compatible bottom bracket range: approximately 68–73mm
• Display option: C965, 750C-BLE or 860C
• Chainring: 44T
• Bicycle frame clearance
• Battery connector compatibility
• Required brake option
Please measure your bicycle bottom bracket before ordering. Installation compatibility may vary depending on bicycle frame geometry and components.
Installation
Professional installation is recommended if you are not familiar with bicycle electrical systems or bottom bracket installation.
Wholesale & OEM
Wholesale and bulk orders are welcome.
For OEM requirements, customized packages, accessories or bulk purchasing, please contact us before ordering.