This paper delves into the multifaceted problem of bicycle theft in Montreal, Canada, using insights from a survey of nearly 2,000 residents. It seeks to answer the key questions of who, what, where, how, and when bicycles are stolen, identifying factors like bicycle value, lock type, and exposure time as significantly impacting the likelihood of theft. The research highlights a disconnect between actual and perceived theft locations and emphasizes the need for improved, secure bicycle parking facilities to encourage cycling as a sustainable transportation mode. Ultimately, the study provides valuable data and recommendations for cyclists, police, and policymakers aiming to reduce bicycle theft and promote cycling in urban environments