Got a used GT agressor sport for a spare bike and. Every thing was out of wack and I finally got it just about sorted out but one issue.
I have tried adjusting the front derailleur as much as possible but the best I can get it there is still a problem. When I up shift from 1st to 2nd the derailleur moves but the chain won't catch and it stays in 1st. it does shift up to 3rd properly and when I shift down from 3rd to 2nd it catches just fine as well as going from 2nd to 1st.
My only issue is that 1st to 2nd up shift.
Please help. Thanks!
I didn't find the right solution from the Internet.