The top speed of the Bajaj Pulsar NS200 can vary depending on various factors such as rider weight, road conditions, wind resistance, and bike condition. Generally, the Pulsar NS200 is capable of reaching a top speed of around 136-145 km/h (84-90 mph) under favorable conditions. It's important to note that riding at very high speeds can be dangerous and may not be legal in certain areas. Always prioritize safety and adhere to speed limits and traffic regulations while riding.