When I was 12 years old, because need to go to school, so my father taught me to ride a bicycle. At first I was afraid, afraid they will fall, so my father helped me to hold the bike, let me slowly

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　　骑自行车应该注意：
1.注意行驶安全。
2.注意正确的坐姿。调整好车座的高低，保持科学的合理的坐姿，不然会对身体健康造成影响的。具体请参考医学方面的知识。
3。注意佩戴防护头盔。虽然很少人这么做，但是为了安全起见，应该佩戴。就如开车系上安全带是一样的。
4.注意骑车道德。很多人在汽车过程中随意吐痰，随意变更车道，随意闯信号灯等等。
5.骑自行车注意车速，在人流较多，车流较多的地方，切不可耍酷高速骑车，任意超车变道。有秩序的适当的速度行车。
6.注意自行车本身的安全检查。每天骑车前要做安全检查，比如刹车是否安全，车气是否正常，链条，变速器是否运转正常等等。
cycling should be noted:
1. pay attention to driving safety.
2. pay attention to proper sitting posture. adjust the level of a good car seat, and maintain a scientific and reasonable sitting posture, otherwise it will affect your health. please refer to the medical knowledge.
3. wear protective helmets. although few people do so, they should be worn for safety reasons. it's just like driving with a seat belt.
4. pay attention to cycling morality. many people spit freely during the car, change lanes at will, random signals and so on.
5. cycling speed, more people in more places, traffic, must not cool the high-speed bicycle, any overtaking lane change. drive at an orderly and proper speed.
6. pay attention to the safety inspection of the bicycle itself. every day before cycling to do security checks, such as whether the brakes are safe, gas is normal, the chain, the transmission is running properly, and so on.