Are you allowed to ride your bicycle on that sidewalk?
Did you just get run over by a bicycle while you were walking on the sidewalk? Do you wonder if that bicycle should even be on that sidewalk?
You need to look at your local ordinances first – or call your local elected officials – they write the laws. For some of us, our favorite bicycling, teaching, blogging, and writing lawyer, Ray Thomas, has done a lot of the legal research.