THE SCALPEL. The KTM 790 DUKE is as surgical as its nickname suggests. With the agility you’d expect from a single, combined with the hard-hitting punch of a twin, the KTM 790 DUKE slices up the road with pinpoint precision. With a 799 cc LC8c parallel twin motor – the most compact in its class – nestled into one of the lightest frames around, the KTM 790 DUKE is all about being fast everywhere, with the corners being its playground.