Can't we just call them: "tricyclists?" Has a nice ring to it, don't you think?You're quoting a source that can be edited by anyone to reflect anything they want. Also, I said motorized- didn't I? If not it was intended. So, if a bike is a single-track, two-wheeled vehicle you have just eliminated the ENTIRE trike riding class by your narrow definition. Don't you think these "motorcyclist" would have a issue with that?