The drive system of electric bicycle is the motor, and the motor can be divided into two categories: mid-mounted motor and ebike spoke wheel hub motor, but the electric bicycle on the market is basically assembled with a ebike spoke wheel hub motor, while the installation of mid-mounted motor is rare, what is the reason for this? The main reason is these points.
1. The cost of the mid-mounted motor is much higher than the ebike spoke wheel hub motor
The cost of mid-mounted motors is much higher than that of hub motors, which is the core reason. The structure of the mid-mounted motor is relatively complex, it contains a motor, differential, flywheel, drive belt and other devices.
2. Electric bike performance requirements are not high, the ebike spoke wheel hub motor can meet
The biggest advantage of the mid-mounted motor is the strong heat dissipation in the high-speed driving condition. When the motor speed reaches 80km/h or more, it will send out a lot of heat, and if it is a hub motor, it is easy to burn out the tires. And most of the vehicles in daily life speed in 50km / h, heat dissipation impact is small, the hub motor is sufficient.
3. Ebike spoke wheel hub motor is more efficient and power-saving, and runs farther
Compared with the mid-mounted motor by belt drive, the hub motor directly mounted on the rear wheels, power conversion is more direct, because there is no transmission energy loss, so the motor is more efficient, lower energy consumption, so more power saving, conducive to the improvement of range.
4. Ebike spoke wheel hub motor post maintenance is simple
Another major advantage of ebike spoke wheel hub motor is the low failure rate, after-sales maintenance is simple and low cost. Mid-mounted motor post-maintenance is more troublesome, need to replace the belt, oil, and lubrication and maintenance of the differential, post-maintenance costs are also on the high side.