All of us at some point have been, or are currently, addicted to something. Some addictions are considered life threatening; smoking, using illegal drugs, etc. Are you addicted to something? Are you asking yourself right now, "Am I addicted to cycling?".
Some of us ride our bikes because we want to lose weight, or because we are training to compete in a specific event, or are fortunate enough to ride our bike professionally for a living. Those are not necessarily reasons to be considered an addiction, just because we love to ride our two-wheeled machine.
However, this guy has an addiction.