What about VOL?

If theft of your bike took place without violence or direct contact and if you do not know the author of the facts, the complaint to the police can be made online (my.police.be) or in a police station (taking an appointment in advance via polbruno.be). The bicycles found are listed on a Facebook page, managed by the Brussels Region, the police and the CyCLO asbl (f MyBike. brussels Bikes found). If you recognize your bike, follow the instructions to know who to contact and how to get it back.