The suitability of a motorcycle's size and fit can vary depending on individual preferences and body proportions. However, as a general guideline, a KTM Duke 200 should be suitable for someone who is 5'7" tall.
The KTM Duke 200 has a seat height of approximately 31.5 inches (800 mm). This seat height is relatively low for a motorcycle and should allow most riders with a height of 5'7" to comfortably reach the ground when seated. The bike's overall ergonomics and compact design are also generally well-suited for riders of average height.
Visit a KTM dealership or try to find opportunities to test ride a Duke 200 to get a better understanding of its fit and ergonomics for your specific body type and riding style.