Exercise bike is a typical aerobic exercise equipment that simulates outdoor exercise (as opposed to anaerobic exercise equipment), also known as cardiopulmonary training equipment. Can improve the physical fitness of the body. Of course, with the consumption of fat, long-term consumption of fat will have the effect of losing weight. Judging from the resistance adjustment mode of exercise bikes, the exercise bikes on the market at present include popular magnetic control exercise bikes (which can be divided into internal and external magnetic control according to the structure of flywheel), high-order electromagnetic control exercise bikes and more intelligent and environmentally-friendly self-generating exercise bikes.