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Designed to solve the existing problems about how we can park the bikes. We can't put the bike into the parking space because its broad handlebar which makes much parking space be used, at the same time, it makes much waste of the parking space. The solution here is that the bike is designed to be 90 degrees in rotating, you can take it to the charge with the bike in the same line to save the space and make it more convenient to go into the narrow parking space.
After turning around the handlebar, the anterior wheel will also be locked avoid of being stolen.
Yu Wang Yanwei Zhao Wenhan Li Shu Lin