Remove any components and accessories, including tire pump, seat, or bags that can easily be taken. If you keep your bike in a garage, make sure that the garage is properly secured. Lock your bike inside the garage by the same techniques as listed above. If someone attempts to rob you of your bike, don't resist. Your life is more valuable than your bike.
Registration is required by law.
Sales receipt or proof of purchase is not required, however, it will be noted on the record that no proof of ownership was available at the time of registration. Put the number on an inconspicuous part of the frame and on accessories with an engraving device. Keep a copy of your bicycle's receipt of purchase. Record its make, model, and serial number, and any distinguishing features. Take a color photo of the bike.