I. A person driving a motorcycle shall ride only upon the permanent and regular seat attached thereto. Such driver shall not carry any other person nor shall any other person ride on a motorcycle unless such motorcycle is designed to carry more than one person, in which case a passenger may ride upon the permanent and regular seat if designated for 2 persons, or upon another seat firmly attached to the motorcycle at the rear or side of the driver, or in a sidecar firmly attached to the side of the motorcycle.
   II. A person shall ride upon a motorcycle only while sitting astride the seat, facing forward, with one leg on each side of the motorcycle.

Terms Used In New Hampshire Revised Statutes 265:120

   III. No person shall drive a motorcycle while carrying any package, bundle, or other article which prevents him from keeping both hands on the handlebars.
   IV. No driver shall carry any person, nor shall any person ride in a position which will interfere with the driving or control of the motorcycle or with the view of the driver.
   V. Any person who violates the provisions of paragraph I, II, or III of this section shall be subject to a fine of $75.