USB Programming Cable for Bafang M400 G330 M500 M620 CAN E-bike Mid-drive Motor, Adjust Wheel Diameter & Remove Speed Limit, Firmware Update Tool

This professional USB programming cable is a dedicated tuning and diagnostic tool engineered for Bafang CAN-protocol mid-drive motors. Designed for the CAN bus system, it establishes a reliable connection between the motor and a computer or display, enabling precise wheel diameter calibration, speed configuration and firmware updates — so you can correct data discrepancies, restore accurate readings and enjoy a more customized riding experience.

✅ Bafang M400 / G330 (CAN) Mid-drive Motor
✅ Bafang M500 / G520 Mid-drive Motor
✅ Bafang M510 / G522 Mid-drive Motor
✅ Bafang M600 / G521 Mid-drive Motor
✅ Bafang M620 / G510 (CAN) Mid-drive Motor
✅ Bafang M420 / G332 Mid-drive Motor
✅ Bafang M800 / G530 Mid-drive Motor

1 × USB Programming Cable

✅ Plug-and-Play Connection: Attach both ends of the programming cable to the motor or display, connect the USB connector to a computer or screen — the indicator light illuminates to confirm a successful connection. If a “25 error” occurs, simply press the module button to restore the normal state.
✅ Precise Wheel Diameter Calibration: Adjust a variety of wheel diameters, including 29 inch, 27.5 inch, 26 inch and 20 inch, with simple press sequences to correct speed and distance readings and get accurate data.
✅ Speed Configuration & Limit Removal: Remove the speed limit effortlessly with preset configurations (60 km/h and 25 km/h options) for an improved riding experience.
✅ CAN Protocol Support & Firmware Updates: Specially designed for CAN protocol motors, including M400/G330 (CAN), M500/G520, M510/G522, M600/G521, M620/G510 (CAN), M420/G332, M800/G530 and more. Enables seamless communication and firmware updates for enhanced performance and customization.
✅ Compact & Lightweight: Approx. 35 cm cable length with a package weight of only 0.093 kg (10 × 10 × 2 cm), easy to store, transport and carry for on-the-go tuning and diagnostics.

Brand: DAFULI
Product Name: E-bike USB Programming Cable
Protocol: CAN
Material: PVC
Color: Black
Cable Length: approx. 35 cm
Package Weight: 0.093 kg
Package Size: 10 × 10 × 2 cm
Package Quantity: 1 piece

Compatible Motors: Bafang M400/G330 (CAN), M500/G520, M510/G522, M600/G521, M620/G510 (CAN), M420/G332, M800/G530

Please verify your motor model supports the CAN protocol before use to prevent incompatibility.
If a “25 error” occurs after connection, press the module button to restore the normal state.
On certain models, adjusting the wheel diameter does not reflect changes on the display screen; exit the settings menu, return to the main page of the display, and re-enter the settings to view the updated value.
Minor color differences may appear due to lighting conditions and screen display variations.
Allow slight manual measurement deviation on the data.
Only the listed programming cable is included; other accessories shown in reference images are not part of the package.
Speed adjustments should comply with local laws and regulations; derestricted settings are intended for private or off-road use only where permitted.
Bafang is a trademark of its respective owner. This is an aftermarket accessory and is not affiliated with or endorsed by Bafang.