10.44.010 Operation of bicycles on roadways and bicycle routes.
(A) No person operating a bicycle upon a highway shall ride other than upon or astride a permanent and regular seat attached thereto.
(B) No operator shall allow a person riding as a passenger on a bicycle, and no person shall ride as a passenger on a bicycle, upon a highway other than upon or astride a separate seat attached thereto. If the passenger is a child, the seat shall have adequate provisions for retaining the child in place and for protecting the child from the moving parts of the bicycle.