Where did Superbikes come from and why did we start racing heavy, flexible 1000cc streetbikes of the 1970s? Kevin Cameron talks with Mark Hoyer about the origin of Superbikes, how racing these streetbikes blew up in popularity, and how they led to the spectacularly good motorcycles we have today. There is no better basis for this conversation than Kevin Cameron & photographer John Owens’ new book, Superbike: An Illustrated Early History. Learn about Superbikes and how this amazing book came to be on this week’s Cycle World podcast.