Axle transmission Since the direction of rotation of the shaft is perpendicular to the forward direction of the car, lateral torque will appear when rotating, causing the car to tilt in the opposite direction of the rotation of the car’s image axis. The higher the speed, the greater the torque, so the shaft transmission is not suitable for high-speed cars.

　　The direction of rotation of the sprocket and the forward direction of the car are the same, and the torque generated only raises the front of the car, which has little effect on high-speed driving.The shaft transmission is characterized by durability, high manufacturing cost, extremely high material requirements, and difficult processing.The chain drive is characterized by low cost, simple maintenance and not durable.

　　The biggest advantage of the shaft drive is that it will not be stretched and the wheel track needs to be adjusted, no oil pollution can basically be maintenance-free, and low loss and high drive efficiency.But there is no shock absorption effect of the chain, and the vibration of the car body is directly transmitted to the rider's body.

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