§ 121-b. Limited use motorcycle. A limited use vehicle having only two or three wheels, with a seat or saddle for the operator. A limited use motorcycle having a maximum performance speed, of more than thirty miles per hour but not more than forty miles per hour shall be a class A limited use motorcycle. A limited use motorcycle having a maximum performance speed of more than twenty miles per hour but not more than thirty miles per hour, shall be a class B limited use motorcycle. A limited use motorcycle having a maximum performance speed of not more than twenty miles per hour shall be a class C limited use motorcycle.