In this detailed video, the creator explores the Tongsheng TSD-Z8 mid-drive e-bike conversion kit, providing a comprehensive review and installation process. Using a Specialized Rockhopper mountain bike, the video walks viewers through every step of installing the 750-watt motor, from removing the original bottom bracket to mounting the new conversion kit. The presenter meticulously demonstrates the installation process, highlighting the kit’s design features and comparing it directly to the well-known Bafang BBS02 mid-drive motor. A key differentiator is the Tongsheng’s torque-sensing pedal assist, which provides a more natural riding experience compared to the Bafang’s cadence-sensing system. The video includes a thorough test ride, showcasing the motor’s performance on various terrains, including steep hills and challenging surfaces. The presenter evaluates the motor’s power, smoothness, noise levels, and durability, even accidentally testing its robustness by hitting a rock during the ride. Throughout the review, the creator provides technical specifications, discusses the motor’s open-source firmware potential, and offers insights into its potential as a compelling alternative to the established Bafang system.
