Changing the rear sprocket on your Bajaj Pulsar NS200 can potentially affect the bike's top speed. A larger rear sprocket (with more teeth) can increase the top speed by reducing the gear ratio, while a smaller rear sprocket (with fewer teeth) can provide quicker acceleration but may reduce the top speed.
Additionally, altering the sprocket size may require adjustments to the chain length and may void the manufacturer's warranty.
If you are considering changing the rear sprocket size to increase the top speed of your Bajaj Pulsar NS200, it is advisable to consult with a professional mechanic or someone experienced with motorcycle modifications. They can provide you with specific recommendations based on your riding style, local conditions, and the desired balance between acceleration and top speed. It's crucial to consider these factors to ensure that any modifications you make align with your safety requirements and the capabilities of your motorcycle.