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Adjustable baby bike can adjust the rear wheels' opening angle freely through the special structure. When two rear wheels are farthest away from each other, the bike will become a stable tricycle. After two rear wheels combine with each other, the bike will become a normal two wheeled bike. This change can help beginners to overcome fear of losing balance, and master the skills of bicycle gradually. This two functions not only reduce the cost but also make children learn riding more relaxed and safety.According to different stages to change functions and the form of the bike.
Dalian Nationalities University