The difference between rear motors and mid-drive motors in an e-bike primarily lies in their location on the bike and how they deliver power, affecting the overall riding experience and bike handling. Rear motors are mounted in the rear wheel hub, directly driving the wheel. This setup is particularly advantageous for city riding. Rear motors are particularly well-suited for flat terrain but can also handle regular inclines effectively.
Mid-drive motors, mounted at the bike’s bottom bracket, drive the crankshaft and use the bike’s gears for propulsion. They offer efficient climbing, however, they are more expensive, cause more wear on the drivetrain, and require more complex maintenance.
For city riding, rear hub motors provide an optimal balance of performance, cost, and maintenance simplicity, making them a better choice for urban environments where the terrain is flat and even. Mid-drive motors are more suited for varied terrains and demanding cycling conditions, which are less common in urban settings.