It's good to walk and ride a bike
Should be better to walk, riding a bike is easy to make PP larger, and always rubbing the buttocks, the body is also no good, and most importantly, cycling is easy to impede blood circulation, is not conducive to any health. And walking is much better, the most primitive and the healthiest.
Advantages of cycling: very little wear for the knee and spine, and aerobic exercise more effective than walking,Disadvantages: sharpen your ass, wrist, neck, acid
Walking advantage: not grinding the buttocks, wrist, neck, acid,Disadvantages: wear knee joints and spine joints.
