Delaware's current motorcycle laws:

4185. Riding on motorcycles.

(a) A person operating a motorcycle shall ride only upon the permanent and regular seat attached thereto, and such operator shall not carry any other person nor shall any other person ride on a motorcycle unless such motorcycle is designed to carry more than 1 person in which event a passenger may ride upon the permanent and regular seat if designed for 2 persons or upon another seat firmly attached to the rear or side of the operator and said motorcycle shall be equipped with passenger footrests.

(b) Every person operating or riding on a motorcycle shall have in that person's possession a safety helmet approved by the Secretary of Safety and Homeland Security (hereinafter "Secretary") through the Office of Highway Safety and shall wear eye protection approved by the Secretary; provided, however, that every person up to 19 years of age operating or riding on a motorcycle shall wear a safety helmet and eye protection approved by the Secretary.

(c) No portion of the handlebars on a motorcycle may extend more than 15 inches above the level of the operator's regular seat. The operator shall keep at least 1 hand on a handgrip of the handlebars at all times when moving.

(d) A person shall ride upon a motorcycle only while sitting astride the seat, facing forward, with 1 leg on each side of the motorcycle.

(e) No person shall operate a motorcycle while carrying any package, bundle or other article which prevents the person from keeping both hands on the handlebars.

(f) No operator shall carry any person, nor shall any person ride, in a position that will interfere with the operation or control of the motorcycle or the view of the operator. (21 Del. C. 1953, § 4182; 56 Del. Laws, c. 333; 60 Del. Laws, c. 701, § 54; 61 Del. Laws, c. 314, § 1; 70 Del. Laws, c. 186, § 1; 74 Del. Laws, c. 110, § 90.)