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The backseat lock changed traditional way to lock.It combined the lock with the backseat,so you don't have to worry about the situation that you forget to bring the lock or where to put your lock when you riding the bike.When you want your bike locked,you can use the backseat lock to lock the wheel,you also can use it to have your bike locked with a lighting pole or fence.
Wuhan University of Technology
Hubei Province, China
ZhouYiting Zhang Xingxing