It could easily be described as the most commercial philosophical book of all time, but it is not just a philosophical book, nor is it a travel guide, and certainly, it is not a book about motorcycles! It is notable that the author himself could never have imagined that he would find such a devoted audience, especially since, as he said, "it is neither related to Zen, as understood by Buddhists, nor does it contain substantial advice on motorcycle maintenance." Never before has a book so inconsistent with its title included such profound meanings that concern everyone, even if they have never ridden a bicycle in their life.