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ANGLE LOCK is a brand new type of bicycle lock. People usually need to carry a bicycle lock whenever they ride a bicycle. Such a heavy lock would be troublesome, either to carry it or use it.
The concept, ANGLE LOCK, combines stem switch and number lock which have been installed in the bicycle frame in advance. Riders can easily lock the bicycle by turn on the number lock to fix the stem at certain degree so that it can’t turn left or right anymore. Therefore, the bicycle can’t move as usual. If someone wants to break ANGLE LOCK to make the bicycle stem free to turn, he has to break the frame of the bicycle.
Taipei City, Taiwan