I m a short guy (165 cm).
The new KTM 390 Duke will have a seat height of 830 mm, making it difficult for riders with average height to ride in rough conditions. The maneuvering will become extremely difficult in dense traffic while braking and putting feet on the ground would be another big issue on the same. It is not advised to go for the 390 Duke before getting a real life experience of the motorcycle. 2017 KTM 390 Duke is now more powerful by 2 Nm while the weight has even gone up to 149 kg. It will be using the same 373.2 cc engine and 6-speed gearbox with slipper clutch.
Know more about 390 Duke here – http://autos.maxabout.com/bikes/ktm/duke/390-duke-2017