In his comic novel 'The Third Policeman', Flann O'Brien reveals De Selby's 'atomic theory' of how a bicycle and its owner gradually become part of one another.
"The gross and net result of it is that people who spend most of their natural lives riding iron bicycles over the rocky roadsteads of this parish get their personalities mixed up with the personalities of their bicycle as a result of the interchanging of the atoms of each of them and you would be surprised at the number of people in these parts who nearly are half people and half bicycles."