Do not leave bikes lying around the yard. Secure them in the garage overnight with the door closed and locked.
Lock your bike and both wheels to an immovable object that cannot be cut or broken. Use a good quality-locking device, such as a hardened steel “U” shaped lock or a hardened steel chain and padlock.
Find and record the bike serial number (usually found on the underside of the frame) to help track stolen bicycles.