THE rule-breaking cyclist that people decry: that’s me. I routinely run red lights, and so do you. I flout the law when I’m on my bike; you do it when you are on foot, at least if you are like most New Yorkers. My behavior vexes pedestrians, drivers and even some of my fellow cyclists. Similar conduct has stuck cyclists with tickets and court-ordered biking education classes.

But although it is illegal, I believe it is ethical. I’m not so sure about your blithely ambling into the intersection against the light while texting and listening to your iPod and sipping a martini. More or less.

I roll through a red light if and only if no pedestrian is in the crosswalk and no car is in the intersection — that is, if it will not endanger myself or anybody else. To put it another way, I treat red lights and stop signs as if they were yield signs. A fundamental concern of ethics is the effect of our actions on others. My actions harm no one. This moral reasoning may not sway the police officer writing me a ticket, but it would pass the test of Kant’s categorical imperative: I think all cyclists could — and should — ride like me.

I am not anarchic; I heed most traffic laws. I do not ride on the sidewalk (O.K., except for the final 25 feet between the curb cut and my front door, and then with caution). I do not salmon, i.e. ride against traffic. In fact, even my “rolling stops” are legal in some places.