I am a proud owner of a third hand GS150R from Cochin, Kerala. I am sedate rider and usually ride at 3000 to 4500 rpm, never exceeding 60 km/h in the city. Once or twice a year, I go with my wife and little kid to Munnar or Idukki. While climbing ghats and inclines, I get knocking sounds in the 2nd gear. So I shift to 1st, but I can see other 100cc bikes like Passion and Scooters easily overtaking me on the same incline.
Is it my riding or my bike that is to be blamed? I have learned to do minor service like oil change and chain lube, so before a ride I usually do a checkup. The maximum I have pushed is till 8000 rpm in the 1st gear, but I am unable to push further.
Will it harm my bike if I go above 8000 rpm? How do 100cc bikes overtake me even though they are less powerful? I am a skinny guy and so is my wife and kid. Our combined weight would be less than 140 kg.
Also, sometimes I have felt as the bike is getting out of breath. It's usually on climbing higher altitudes. I can feel my ear popping. On descending the issue fades away. Has anyone else faced the same issue on GS150R or other 150cc bikes?



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