







⚡ Transform your ride, own the road with smart power!
The Tongsheng OSF Electric Bike Conversion Kit TSDZ2B features a powerful 500W mid-drive motor with advanced dual clutch design for smooth pedaling. It includes an open source OSF 860C display allowing full firmware customization, a smart torque sensor for responsive assist, and fits standard 68-73mm bottom bracket bikes with disc brakes. Weighing just 5.1kg, it balances power and lightweight design to upgrade your bike into a high-performance e-bike.
B**D
Exactly what I hoped
Great Kit. The Open Source Firmware is amazing.
Trustpilot
4 days ago
1 month ago