The It has been electronically limited to a top speed of 186 mph (299 km/h) by Kawasaki. However, with the limiter removed or modified, the Ninja ZX-14R is capable of achieving higher speeds. It's important to note that reaching these speeds requires appropriate conditions, skill, and adherence to local traffic laws and safety regulations. For the most up-to-date and accurate information, it's advisable to consult Kawasaki's official website or reach out to a Kawasaki dealership.