I think the title of “tripping” gives this book on bikes that cool, druggy overtone. Take a close look at the cover. Very trippy, or should I say “groovy.”
The illustrations are also weird. I have no idea what the illustrations below are trying to communicate, other than maybe exercise on your bike might inflate your calves twice their size.
Clearly, this book is too old for a modern library collection. Weed it and make sure your bicycle collection is current.