BAFANG BBS02B Mid Drive Motor Kit, 48V 750W UART Bus Ebike Conversion Kit with LCD Display, USB Programmable, Fits 68-73mm Bottom Bracket, Battery Optional

Bafang BBS02 48V 750W mid-drive motor is a powerful, versatile, and cost-effective solution for electric bike conversions. Delivering high torque and smooth power delivery, it excels on hills and varied terrain while maintaining natural bike handling. Designed with a universal bottom bracket mount (68–73mm), it fits most standard bicycle frames—ideal for commuters, cargo bikes, and off-road builds. This UART-version model offers stable performance at a lower total system cost compared to CAN-based alternatives, without compromising reliability. It comes complete with an integrated 44T chainring and left crank arm, so no extra parts are needed for installation. Backed by mature firmware and trusted diagnostic tools, the BBS02 ensures easy setup, tuning, and long-term durability for both DIY enthusiasts and professional integrators.

• High Torque & Robust Performance: Delivers strong 750W peak power and high torque output, providing excellent hill-climbing ability and responsive acceleration suitable for demanding off-road and urban commuting scenarios
• UART Protocol Cost-Efficient & Stable: Utilizes a proven UART communication interface instead of CAN, offering reliable operation at a lower total system cost for budget-conscious builders without sacrificing stability
• Wide Vehicle Compatibility: Designed as a universal mid-drive solution, it fits most standard bicycle frames with a 6873mm bottom bracket, making it adaptable to mountain bikes, cargo bikes, and commuters
• Accessory Function Introduction: The DZ40 instrument is economical and practical, compact and convenient. The original 44T gear disc with an additional chain cover makes cycling easier and ensures there are no scratches. It is also accompanied by the matching left crank arm - no additional purchase or compatibility checks are required
• Reliable Support Tools & Ecosystem: Supported by well-tested, custom configuration tools and a mature user community, ensuring easy setup, tuning, and long-term maintenance for both DIYers and professional integrators
• Complete Conversion Kit: Comes with integrated 44T chainring and left crank arm included in the package, eliminating the need for additional component purchases and simplifying the installation process for electric bike conversions