my pulsar 180 is facing some weird issue.I had been to my native which is of 1000km altogether.while returning i was facing Chain issue so went to Bajaj doctor to show it. per Doctor(Bajaj service center) suggestion i changed chain sprocket. Since then my bike's top speed has decreased. before it use to reach 100km/hr like a piece of cake. But now it can reach 100 only in down road. please let me know what issue it could be.

FYI ...I am using K&N filter and irridium spark plug since 6months. and it its running 24000 km...





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