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-   -   Help with STI FD "Trim" Feature (https://www.bikeforums.net/bicycle-mechanics/74101-help-sti-fd-trim-feature.html)

John H. 11-08-04 11:37 AM

Help with STI FD "Trim" Feature
 
I recently replaced my Ultegra Triple with an FSA double. All is well, with one exception - at least 50% of the time, the STI shifter will move the chain back from the big wheel to the small wheel when I attempt to trim the FD after shifting to the big wheel. It goes right past the trim "click". When my bike is on the stand, and I can deliberately hold the big STI lever while clicking the small inside lever, it trims perfectly every time. I'm guessing that either I haven't developed the touch with the STI shifter or something is not quite dialed in. Perhaps it is a FD cable tension issue?

Thanks in advance for any suggestions.

sydney 11-08-04 11:55 AM


Originally Posted by John H.
I recently replaced my Ultegra Triple with an FSA double. All is well, with one exception - at least 50% of the time, the STI shifter will move the chain back from the big wheel to the small wheel when I attempt to trim the FD after shifting to the big wheel. It goes right past the trim "click". When my bike is on the stand, and I can deliberately hold the big STI lever while clicking the small inside lever, it trims perfectly every time. I'm guessing that either I haven't developed the touch with the STI shifter or something is not quite dialed in. Perhaps it is a FD cable tension issue?

Thanks in advance for any suggestions.

Operator error,high limit set a bit too tight, or too much cable tension.

John H. 11-09-04 10:35 AM


Originally Posted by sydney
Operator error,high limit set a bit too tight, or too much cable tension.

Sure enough, I adjusted the high limit and viola! -- trims just like it should. Thanks for the help!


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