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Securus / Bicycle Lock


Designed for portability and dependability, Securus bicycle lock raises the bar of security while limiting its size by featuring an alarm system. With its unique slide-and-turn locking feature, an 110dB alarm and a 12V battery are installed inside the lock with the battery retrievable only when the lock opens to prevent any means of power cut. Four electric wires are mounted onto the 13mm hardened alloy steel shackle and the lock section, which create a close loop that provides inactivation signals to the alarm while the lock is closed. With any of the four wires cut, the alarm is activated to deter any further mutilation by the thief.


University of Toronto

University of Toronto
Mechanical Engineering
Toronto, Canada



University of Toronto

University of Toronto
Vancouver, Canada

Howard Tseng