Information about the template:
The KTM 690 Duke is the latest generation in KTM's line of mid-range single-cylinder supermotos, or naked motorcycles. In 1994, the 609 cc (37.2 cu in) Duke 620 or Duke I began, followed in 1998 by the 625 cc (38.1 cu in) Duke 640 or Duke II, followed by the 654 cc (39.9 cu in) Duke III , and finally the Duke IV produced since 2012 had a displacement of 690 cc (42 cu in).