Why do bicycles need to shift gears?

Its true meaning is: adjust the pedaling resistance according to different road conditions to keep the ride in a more comfortable and efficient state.

The gear position of a bicycle is essentially a combination of different gear ratios in the transmission system.

It determines: how much force is needed to pedal and the speed at which the wheels rotate.

The resistance when stepping in heavy gear is greater. With each pedal lap, the vehicle travels a greater distance.

Light gear has less stepping resistance. It feels much easier to step on.

A little tip for beginners: When you first start cycling, don’t be afraid to try changing gears. You can try different gear combinations on safe sections of the road to feel the changes in pedaling resistance and gradually find a cycling rhythm that suits you