In cities where bicycle registration is mandatory, thefts of bikes are less likely to occur since they are not as easy to sell as un-registered bikes. Bike registration is quick, simple, and free! It can be an effective tool to help get your bicycle back in the event it is stolen.
Bicycle Registration also aids in identifying the owner of a bicycle in case of a crash. Many bicyclists don't carry identification with them - this is especially true for children. It could take hours for emergency personnel to make positive identification and contact a parent if a child is hurt, or scared or confused.