Join Date: Feb 2004
Location: St Peters, Missouri
Bikes: Rans Rockst (Retro rocket) Rans Enduro Sport (Retro racket) Catrike 559, Merin Bear Valley (beater bike).
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Who did adjust your front derailleur?
I'm going to be a little bit contrary, assume the derailleur was adjusted close to right initially, and offer an alternate plan.
1. Shift into your smallest chainring and largest rear cog. Take a look at where the inside of the derailleur cage is located relative to the chain. It should miss the chain by about 1 millimeter, that's pretty darn close.
2. If that's the case, you obviously aren't going to adjust your low limit screw any more because it would cause chain drag.
3. Now shift into your smallest cog in back and gently shift onto your biggest front chainring. If it's hard to shift there's your answer. Loosen your high limit screw about 1/8 turn and that'll fix it.
Oftentimes bike mechanics set the high limit screw by shifting into the hardest gear combination and just adjusting the limit screw against the derailleur. If you do it that way you risk causing the derailleur to bind up when you shift onto the big ring. Then, when you try to shift down, it hesitates initially and, when it overcomes the bind up it throws the chain forceable across the crankset and overshoots the granny gear.