Modifying the sprocket size of your motorcycle can impact its performance and speed. However, it's important to note that altering the sprocket size may affect other aspects of the bike's performance, such as acceleration and fuel efficiency. Additionally, modifying your motorcycle's sprocket size may void warranties or have legal implications in some regions. It's always recommended to consult with a professional mechanic or the manufacturer for specific recommendations tailored to your motorcycle model. That being said, I can provide you with some general information.
The sprocket sizes that are commonly adjusted to influence the motorcycle's speed are the front sprocket (also known as the countershaft sprocket) and the rear sprocket. By increasing the size of the front sprocket or decreasing the size of the rear sprocket, you can achieve higher top speeds. However, keep in mind that altering the sprocket sizes may result in reduced acceleration or increased strain on the engine.
To estimate the impact of changing the sprocket size on your NS 200's speed, you can refer to the motorcycle's gear ratio chart and perform some calculations. The gear ratio chart shows the number of teeth on the front and rear sprockets for each gear.
For example, if your NS 200 has a 14-tooth front sprocket and a 38-tooth rear sprocket, and you want to increase the top speed to approximately 160 kph, you might consider changing the sprocket sizes as follows:
Increase the size of the front sprocket: You can try increasing the front sprocket size to 15 or 16 teeth. This will slightly increase the top speed but might result in reduced acceleration.
Decrease the size of the rear sprocket: You can consider reducing the rear sprocket size to 36 or 35 teeth. This will provide a higher top speed, but keep in mind that it may affect acceleration and low-end torque.
It's crucial to remember that altering the sprocket sizes can have various effects on your motorcycle's performance, and it's recommended to consult with a professional mechanic or the manufacturer to ensure the modifications align with your specific riding needs and the capabilities of your bike. Additionally, it's important to adhere to local traffic laws and regulations while making any modifications to your motorcycle.