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When riding a bicycle, there is no need to carry the lock, taillight and the air pump separately, anymore. They can be fixed and installed on the sit-post, not infringing on the exterior of the bicycle. As it is adjacent to the rear wheel, the user can easily lock and unlock with password and automatic wiring. This is a T-formed multi device that primarily prevents a theft of the bicycle, and furthermore, that of the taillight, air pump and the sit-post.
KPU Korea Ploytechnic University
Gyeonggi-do, South Korea
Korea Polytechnic University
seoul, South Korea