No poll, no set parameters, just say what bike you think represents each decade in motorcycling history the best. Even break it down into motorcycle types and brands, as in a motorcycle that represents the pinnacle for that manufactures decade or dirt and street. Just examples: Was the V-Max a bike of the decade for the 1980's or just for Yamaha? Was the Honda Elsinore 250 a bike that changed motocross in that decade? Was the Vincent Black Shadow the most technologically advanced motorcycle of it's decade? Such and such, with an emphasis on each decade and a change in the sport, technology or classification that began with a certain bike.