Real men ride motorbikes, or failing that, they aspire to ride them. Unable to smoke cigars at the table, drink whiskey in the office, or opt out of hands-on child rearing, being into motorcycles is one of the last ways a man can express his masculinity. Of course, for some modern men the cost, inconvenience, danger and discomfort involved means that their riding is done on the mental plane, rather than on the tarmac. Whichever category you fall into, this huge new book by Messrs Ian Barry and Nicolas Stecher provides an unrivalled visual overview of the first century of motorbikes. Here we present a small selection from the book's 100 bikes.