2017 KTM 790 Duke Prototype

2017 KTM 790 Duke Prototype sits outside KTM's regular production lineup entirely, serving as the public test mule for what would eventually become the brand's parallel-twin middleweight platform. This is the machine enthusiasts nicknamed the "Scalpel" after its EICMA debut, and it exists to prove out an engine architecture and electronics package KTM hadn't run before in this configuration. Riding one, if you ever get the chance, means experiencing a motorcycle still finding its final shape — chassis geometry, ergonomics, and tuning all pointed toward a production bike but not yet locked down. It rewards curiosity more than aggressive riding, since this is fundamentally a rolling engineering statement rather than a finished street weapon.

As the first year of the prototype, there's no prior version to compare against and no factory changes to track. Buyers of the 2017 KTM 790 Duke Prototype aren't cross-shopping model years; they're evaluating a singular piece of development history. Interest here comes from serious KTM collectors and parallel-twin historians who understand this bike's role in shaping the Duke line's future, not riders looking for daily transportation.