Bicycles can be used as an environmentally friendly means of transportation for walking and traveling; More and more people use bicycles as fitness equipment to exercise and travel by bike; Cycling itself is also a competitive sport, including road cycling, mountain cycling, field cycling, stunt cycling, etc.

Bicycle is one of the best tools for sports and leisure activities. Kinematics experts believe that cycling, like running, walking and swimming, can exercise the endurance of internal organs and improve the heart and lung function. Because riding a bicycle is a heterolateral dominant movement, the alternating pedaling of two legs can also make the brain functions of the left and right sides develop in a balanced and coordinated manner, thus improving the agility of the nervous system. It is understood that there are 20 million people riding bicycles to exercise in the United States today; In Europe, cycling "one-day tour" has also become one of the most fashionable sports.