Children of different ages and heights need bicycles of different sizes. Generally speaking, the size of children's bicycles can be selected based on their height. When choosing, make sure that the child's feet are flat on the ground so that they can ride steadily. The safety of children's bicycles is crucial. When choosing, check whether the brake system is sensitive and reliable, and whether the chains and tires are intact and undamaged. In addition, some high-end children's bicycles are also equipped with anti fall designs, such as auxiliary wheels and anti slip pedals, to ensure the safety of children during riding.

Children's bicycles are usually made of materials such as high carbon steel, aluminum alloy, or carbon fiber, which have the characteristics of high strength, corrosion resistance, and lightweight, making them very suitable for children's cycling. At the same time, the design of children's bicycles also emphasizes safety, such as being equipped with protective wheels (balance wheels) to help children maintain balance, as well as a frame and seat design that conforms to children's ergonomics.