How to keep your bike from being stolen:
My favorite advice is “Have a really expensive looking Bike… Lock. (and a crummy looking bike)”
Even new bikes can be made less shiny. Ride it everywhere: dirt/mud/let your kid ride it! Don’t worry about it too much…
Register Your Bike!
Don’t even take it out of your sight until you do this.
There are others, too:
Note Your Serial #
This may be the most important part!
Otherwise you have no proof. I’ve seen some great bikes with the # highly visibly etched or made part of the frame… If your bike is nice enough, consider asking your mechanic to do so.
Lock it up!
Lock your bike to the foot of your bed, or to be extra secure, to your foot.
What to do if your bike is stolen:
File a police report!
Over $500, call the non-emergency number at 206-625-5011 to report it to an officer