How can we avoid bike theft?

In Shenzhen, China, people ride bicycles almost for free because bicycle sharing companies such as Ofo (yellow) and Mobike (orange) compete each other aggressively. Numerous brand new bicycles are poured on a daily basis.     Using bicycle sharing system is very convenient. I subscribed Mobike. There is no parking station. Instead, I use app to search for available bicycles.…

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