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Is it safe to buy children's bicycles or to change them?
If the road to school has no slope and is mainly flat, a single speed is enough. If there are more uphill and downhill, the speed change will be better. After all, it is more labor-saving to use low gear when going uphill. But the failure rate of variable speed is higher than that of single speed.

Children's bicycles are controlled by children themselves, with high speed. When children ride children's bicycles, guardians should carry out safety awareness education, such as basic, understandable and cognitive training on vehicle functions, vehicle direction, braking system, simple danger identification and barrier-free venues. At the same time, children should wear safety protection articles, such as safety helmet, elbow pads and knee pads.

Extended data

pay attention to

① Select the height of the saddle.

Children's bicycles stipulate that the height of the saddle is between 435 mm and 635mm. If the height is greater than 635 mm, from the child's physiological point of view, it is easy for the foot to touch the ground because of the high height of the saddle in an emergency, thus causing safety accidents.

② Pay attention to the size and width of the brake handle.

Children's small hands can't hold the big brake handle suitable for adults. Children's bicycles (4-8 years old) have special requirements on the size of the brake handle, so as to ensure that children can effectively apply force to the brake handle when they need to brake, ensure that children's bicycles can produce braking effects and avoid dangerous collisions.

③ Recognize the necessity of balance wheel.

Children's bicycles should be equipped with balance wheels in the normal riding state according to the instructions. The balance wheel can ensure that children will not fall down because they lose their center of gravity when riding, so it is also an important part of children's bicycles. The strength of the balance wheel directly affects the safety requirements of children when riding.