Its name is Bicycle Guardians. It is not only the pedal of the bicycle, but also a lock to protect the safety of the bicycle.
The emergence of this design provides people with a simpler and more efficient way to lock the car. The bicycle pedal and lock are cleverly combined to shorten the operation time within a few seconds. Having a Bicycle Guardians means having a convenient life.
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Bicycles have flywheels, which can be carried out completely?
Will you use dirty feet...
A wrench can remove the pedal how to lock it
Is it difficult to realize it?
Not bad
Great idea, is there any difficulty in realizing it?