Yes, it is generally possible for someone who is 5'6" (167 cm) to ride the KTM Duke 200 comfortably. The KTM Duke 200 has a seat height of approximately 810 mm (31.9 inches), which is considered moderately tall for a motorcycle. However, rider comfort can vary depending on factors such as leg length and personal preference.
To determine if the KTM Duke 200 is suitable for you, it is recommended to visit a KTM dealer or motorcycle showroom to physically sit on the bike and assess how well your feet reach the ground. This will give you a better idea of whether you can comfortably handle the bike at a standstill and while maneuvering.
Additionally, keep in mind that you can also make adjustments to the bike's suspension if needed to lower the seat height slightly, although this may affect the overall handling and ground clearance of the motorcycle. It's always best to consult with a professional or a KTM dealer to ensure any modifications are done correctly and do not compromise safety.
Ultimately, it's important to find a motorcycle that you feel confident and comfortable riding, so taking a test ride or seeking expert advice can help you make an informed decision.