I speak of my father felt. I offered him on the occasion of the feast of fathers. This book explains the mythical models of famous brands of bikes. at the end of the book there are all the winners of the towers of France talie of Spain since the beginning. it exlique the significant advances such as time, french constructor which was originally clipless pedals with side mobility .perso I love the bike speed record of Eddy Merckx 1972 double page