KTM 690 Duke
The KTM 690 Duke was a motorcycle developed for KTM's line of midrange single-cylinder engine supermoto, or naked motorcycles that began with the 1994 displacement Duke 620 or Duke I, followed by the 1998 Duke 640 or Duke II, followed by the Duke III, and finally the Duke IV made since 2012. Both the Duke III and Duke IV are called the '''690 Duke'''