Riding a bicycle instead of walking is a great invention, that is the best method for fitness, bodybuilding. It is exercising the legs muscle strength under the case of legs without load,Stree Overlord  improving cardiovascular endurance and strengthen the body, so it is suitable for obese persons. Cycling consume much energy, a woman weighing 70 kg, one way 5 km bike to work/home, speed 9 km / h, YING DA WANG one-year consumption of fat is 9 kg, showing that it is an effective means of weight loss.a