I purchased Glamour on 8th Oct'13 and since first day of my ride, I have problem in gear shifting, i.e from 1st to 2nd. The other shifting patterns are OK, i.e from neutral to 1st, 2nd to 3rd & 3rd to 4th. The first service was done on 5th Dec. I have brought this to the notice of Hero Service Engineers but even after servicing the problem persists. Can anyone help in resolving this issue.
I did not find the right solution from the internet.
If it's shifting well on one half the cassette but shifting poorly on the other half it's probably a bent derailleur hanger. Remove the hanger, check if it's straight. If it's bend you should be able to straighten it or just replace it.