MulTi

MulTi - Bicycle Multi Function Equipment
(Bicycle Lock + Bicycle Taillight + Bicycle Air Pump)
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.