If the size of the bicycle is inappropriate, or if you ride the bicycle in an inappropriate posture for a long time, it will indeed cause some minor physical problems over time. Therefore, we should find the bike that suits us best, adjust our riding posture, and check the brakes and other key parts of the bicycle before riding. After checking, we can ride with confidence. If you ride for a long time, you can stand up and relax on the pedals under the premise of ensuring safety.