The Kawasaki ER6n has a seat height of approximately 31.5 inches (80 cm). As a rider with a height of 5'3" (160 cm), it is possible for you to ride the Kawasaki ER6n. However, keep in mind that the reach to the ground may be a bit challenging, especially when coming to a stop or maneuvering the motorcycle at lower speeds.
To determine if the Kawasaki ER6n is a suitable fit for you, it's recommended that you visit a dealership or a motorcycle rental service and request to sit on the bike. This will allow you to assess if you can comfortably reach the ground with both feet flat and have proper control over the motorcycle. You should be able to maintain balance and have confidence in handling the bike in various riding situations.
If you find that the ER6n is too tall or feels uncomfortable, you may consider other motorcycles with lower seat heights that are more accommodating for riders of your stature. Ultimately, finding the right motorcycle that offers a comfortable riding position and ensures your safety should be a priority.