Optimization of center of gravity distribution: The motor is located at the center of the frame, which significantly enhances stability during cornering, especially suitable for complex roads such as mountain bikes. 

Reduced unsprung mass: Compared to wheel hub motors, mid mounted motors reduce wheel runout, lower energy loss, and improve heat dissipation efficiency.

2. Power and transmission efficiency
High torque output: The central motor drives the rear wheels directly through the chain, with a torque 20% higher than that of the same power wheel hub motor, and stronger climbing ability (such as easily handling steep slopes of 30 degrees). 

Agile response: torque sensor integrated with motor, power transmission is more direct when pedaling, and the riding experience is closer to traditional bicycles.

3. Flexibility in modification and maintenance

Strong compatibility: The motor does not occupy rear wheel space and can be freely matched with the gearbox and wheelset, suitable for modification enthusiasts.
Easy to troubleshoot: The integrated design concentrates components such as controllers and sensors, making it easy to quickly diagnose problems.

4. Design advantages
Simplification of cable assembly: high integration reduces exposed cables, and the overall appearance of the vehicle is simpler.