Yes, in the context of motorcycles, "Duke" is a model name used by KTM (Kronreif Trunkenpolz Mattighofen). KTM is an Austrian motorcycle manufacturer that produces a range of motorcycles, including street bikes, off-road bikes, and sport bikes.
The KTM Duke series refers to KTM's line of street motorcycles that are known for their aggressive styling, performance, and nimble handling. The Duke models are designed for both urban riding and spirited sport riding on paved roads. They typically feature powerful engines, lightweight chassis, and advanced suspension systems.
The Duke models are available in various engine displacements, such as the KTM 125 Duke, KTM 200 Duke, KTM 250 Duke, KTM 390 Duke, KTM 690 Duke, and others. Each model offers different power outputs and specifications to cater to different rider preferences and licensing regulations in different regions.
So, to summarize, "Duke" refers to a specific line of motorcycles produced by KTM. When people mention the KTM Duke, they are referring to KTM motorcycles from the Duke series.