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front derailer adjustment

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front derailer adjustment

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Old 10-09-11, 06:24 AM
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paperback rider
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front derailer adjustment

Shimano 105 front derailer, acting as though motion in the shifter is not producing enough motion in the cable. Small-to-large shifting takes a full sweep of the shifter, letting the shifter return to its original position, and then another partial sweep. Similarly, large-to-small shifting takes about 1-1/2 sweeps of the small lever.

Where is the adjustment for this?
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Old 10-09-11, 06:45 AM
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Originally Posted by paperback rider View Post
Shimano 105 front derailer, acting as though motion in the shifter is not producing enough motion in the cable. Small-to-large shifting takes a full sweep of the shifter, letting the shifter return to its original position, and then another partial sweep. Similarly, large-to-small shifting takes about 1-1/2 sweeps of the small lever.

Where is the adjustment for this?
A little more info please? Double or triple, integrated shifter also 105 and crankset? Maybe just the cable is on the wrong side of the pinch bolt.

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Old 10-09-11, 08:06 AM
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Integrated brake-shifters, double crankset. This isn't a new build (shifting was working fine until a couple of rides ago) so I'm working on the assumption that something worked its way out of adjustment.
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Old 10-09-11, 09:37 AM
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Iowegian
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There isn't an adjustment for that: something isn't working correctly.

I'd disconnect the cable from the FD check it to make sure it is moving freely but more likely the problem is internal to the STI lever itself. Probably a time for 'spray and pray'. Ie, spray the internals of the STI lever with some sort of solvent to dissolve the grease inside which may be dirty and gummy and preventing all the little springs and cogs, etc from moving freely.
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