(A)   No driver of a two- or three-wheel motor vehicle shall carry any other person on, upon or within the vehicle on any street or highway or alley or other public way in the city, except as hereinafter provided.  If any two- or three-wheel motor vehicle with a wheel diameter of 12 inches or greater shall have either a double seating device with double foot rests or a side car attachment, providing a separate seat space within the side car attachment for each person riding therein so that the person shall be seated entirely within the body or the side car, then it shall be permissible for an operator who has attained the age of 16 years or older to carry a passenger.
   (B)   A demonstration ride by a licensed dealer or his or her employee is excepted from the provisions hereof.  No motorcycle or motor scooter shall be ridden upon any sidewalk of the city.  Handlebars on motorcycles and motor scooters shall not exceed 12 inches in height, measuring from the crown or point of attachment.  No rider of a motorcycle or motor scoter shall hold to any moving vehicle for the purpose of being propelled.
(47 O.S. § 40-103)  (`90 Code, § 20-118)