KTM’s 390 Duke nameplate arrived for model year 2013 as part of the company’s expanding small-displacement Duke family, bringing the brand’s sharp, minimalist streetfighter concept to a wider audience. It was positioned as an accessible but fully fledged member of the Duke range, aimed at riders who wanted lightweight handling and lively real-world performance in a compact package. In North America, KTM has identified it as the first small-displacement Duke to reach the market there, and it quickly became one of the model line’s most important entry points.
Over time, the 390 Duke has gone through several major updates while remaining true to its core idea. Early versions established the formula of an aggressive upright naked bike with a single-cylinder character and a strong emphasis on agility. The model was significantly refreshed for model year 2024, when KTM introduced a completely redesigned single-cylinder Duke platform with new chassis architecture, revised styling, and updated rider aids. That change marked the biggest shift for the sub-500 cc Duke family since the original 390 first appeared.
The 390 Duke remains an important global KTM nameplate, serving as a gateway into the Duke lineup while also acting as a benchmark for lightweight, urban-focused performance motorcycles.