Maryland Transportation Section 11-104

      "Bicycle" means a vehicle that:

            (1)      Is designed to be operated by human power;

            (2)      Has two or three wheels, of which one is more than 14 inches in diameter;

            (3)      Has a rear drive; and

            (4)      Has a wheel configuration as follows:

                  (i)      If the vehicle has two wheels, with both wheels in tandem; or

                  (ii)      If the vehicle has three wheels, with one front wheel and with two rear wheels that are spaced equidistant from the center of the vehicle.