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  1. #1
    Senior Member
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    May 2008
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    Merckx titanium with Chorus, Columbus Cyclops Campy Victory, 531 Harry Quinn 1st gen DA, SLX Fuso 8-spd DA, Airfriday. Colnago Gilco with Campy mix, Claude Pottie 753 w. 8S Record, Claude Pottie Columbus with 105, Basso with DA 7402, Masi Team 3v wit
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    Troublesome 7-speed STI adjustment (one click off top and bottom)

    I know there are hundreds of threads out there on adjusting STI rear derailleurs, but I haven't found exactly my (probably trivial) "problem" and so it might be easier to just ask again.

    Please don't laugh at my 7-speed 105 setup. It's on my 12 year old Air Friday (which also has a 3-speed internal Sachs rear hub). but I took it out of it's case for it's annual check up and before I pack it away for another year, I would like to get it shifting correctly.

    I know the basics of STI RD adjusting: drop to smallest rear, click up to 2nd smallest rear, barrel adjust til just making noise against the 3rd, roll it back half a turn.

    But here's my result (and please excuse my nontechnical terminology).
    * Drop it down into the smallest rear.
    * One Click up to the 2nd-smallest.
    * Barrel adjust to noise point, then back.
    * It then shifts smoothly 3,4,5,6... up to the biggest rear (#7).

    * BUT then it needs 2 clicks to drop down to the 2nd-largest rear (#6).

    * then it clicks smoothly down to the 2nd smallest (#2) but won't drop back into the smallest rear (#1).

    So, I seem to be one index point off at both the top and bottom, even though I think I started the adjusting process off correctly.

    any suggestions as to what I am doing wrong?

    many thanks

    Peter

  2. #2
    slow as I ever was Ex Pres's Avatar
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    Dec 2007
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    an imposter living in the 35223
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    possibly cable friction interfering with the "release" allowing it to shift to smaller cogs. But first, I'd just release some tension and see how it goes before I mucked around with the cables and housings.
    72 special CNC ___________ 72 Frejus (ala Legnano) __73 Holdsworth Record
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  3. #3
    Senior Member
    Join Date
    May 2008
    Location
    Toronto, Canada
    My Bikes
    Merckx titanium with Chorus, Columbus Cyclops Campy Victory, 531 Harry Quinn 1st gen DA, SLX Fuso 8-spd DA, Airfriday. Colnago Gilco with Campy mix, Claude Pottie 753 w. 8S Record, Claude Pottie Columbus with 105, Basso with DA 7402, Masi Team 3v wit
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    that's a good suggestion. it has been a while since I replaced the cables and housing.

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