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Campy Triple FD Problem

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01 / Original postCampy Triple FD ProblemCrankyrigger · 26 Jan 2004 02 / This pagePosts 1–6Page 1 of 1 · chronological order 03 / Latest replyPost #6Russell Seaton · 26 Jan 2004

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Original section
Cycling Equipment
Published
26 January 2004
Last activity
26 January 2004
Original author
Crankyrigger
Posts
6
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Public discussion
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589
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0
Topics
Front derailleursCampagnoloDrivetrain compatibility

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  1. Original post
    Crankyrigger
    Archived post
    #1

    I'm rebuilding a friend's Richard Sachs with a new Record triple group. Everything was fine until I
    got to the front derailleur. It's a braze-on model, and I can't get it high enough to clear the 52
    tooth outer ring. It is about 2 mm too low at the top of the slot. I'm trying to get my friend back
    on the road quickly. I guess I could switch to a 50 tooth ring, but that wouldn't be the best
    solution for him. If I file the slot, I'll only have about 2 mm of metal left at the top. I don't
    like that idea, but would that be enough? The old derailleur is a 1991 Athena. It does clear the
    ring, and it has enough range to cover three rings, would it work with Ergo and a triple? The cage
    is narrower, so I assume it would require more trimming. Perhaps more important, the inner cage
    plate doesn't drop down as far. Would that seriously compromise shifting? My friend is looking for
    simplicity, not a science project every time he shifts.

    Thanks

    Mike Fennelly

    Report
  2. Sergio Servadio
    Archived post
    #2
    Crankyrigger said:

    I'm rebuilding a friend's Richard Sachs with a new Record triple group. Everything was fine until
    I got to the front derailleur. It's a braze-on model, and I can't get it high enough to clear the
    52 tooth outer ring. It is about 2 mm too low at the top of the slot.

    How about filing away a little metal?

    Sergio Pisa

    Report
  3. Pete Biggs
    Archived post
    #3
    Crankyrigger said:

    I'm rebuilding a friend's Richard Sachs with a new Record triple group. Everything was fine until
    I got to the front derailleur. It's a braze-on model, and I can't get it high enough to clear the
    52 tooth outer ring. It is about 2 mm too low at the top of the slot. I'm trying to get my friend
    back on the road quickly. I guess I could switch to a 50 tooth ring, but that wouldn't be the best
    solution for him. If I file the slot, I'll only have about 2 mm of metal left at the top. I don't
    like that idea, but would that be enough? The old derailleur is a 1991 Athena. It does clear the
    ring, and it has enough range to cover three rings, would it work with Ergo and a triple? The cage
    is narrower, so I assume it would require more trimming. Perhaps more important, the inner cage
    plate doesn't drop down as far. Would that seriously compromise shifting? My friend is looking for
    simplicity, not a science project every time he shifts.

    Ergos are compatible with all front derailleurs so I suggest trying the old Athena first. Nothing
    more than some time to loose.

    Another solution might be to file the slot as much as you dare then try a 51 tooth Specialites TA
    ring if the 52T still wasn't reachable.

    ~PB

    Report
  4. Ronald
    Archived post
    #4
    Quoted message said:

    I'm rebuilding a friend's Richard Sachs with a new Record triple group. Everything was fine until
    I got to the front derailleur. It's a braze-on


    model,

    Quoted message said:

    and I can't get it high enough to clear the 52 tooth outer ring. It is


    about 2

    Quoted message said:

    mm too low at the top of the slot. I'm trying to get my friend back on the


    road

    Quoted message said:

    quickly. I guess I could switch to a 50 tooth ring, but that wouldn't be


    the

    Quoted message said:

    best solution for him. If I file the slot, I'll only have about 2 mm of


    metal

    Quoted message said:

    left at the top. I don't like that idea, but would that be enough? The old derailleur is a 1991
    Athena. It does clear the ring, and it has


    enough

    Quoted message said:

    range to cover three rings, would it work with Ergo and a triple? The cage


    is

    Quoted message said:

    narrower, so I assume it would require more trimming. Perhaps more


    important,

    Quoted message said:

    the inner cage plate doesn't drop down as far. Would that seriously


    compromise

    Quoted message said:

    shifting? My friend is looking for simplicity, not a science project every


    time

    Quoted message said:

    he shifts.

    Maybe it's possible to tap another hole in the deraillieur below the current mounting screw hole so
    it can be mounted higher.

    "Crankyrigger" <[email hidden]> wrote in message news:20040126014915.28471.00000753@mb-
    m01.news.cs.com...

    Quoted message said:

    I'm rebuilding a friend's Richard Sachs with a new Record triple group. Everything was fine until
    I got to the front derailleur. It's a braze-on


    model,

    Quoted message said:

    and I can't get it high enough to clear the 52 tooth outer ring. It is


    about 2

    Quoted message said:

    mm too low at the top of the slot. I'm trying to get my friend back on the


    road

    Quoted message said:

    quickly. I guess I could switch to a 50 tooth ring, but that wouldn't be


    the

    Quoted message said:

    best solution for him. If I file the slot, I'll only have about 2 mm of


    metal

    Quoted message said:

    left at the top. I don't like that idea, but would that be enough? The old derailleur is a 1991
    Athena. It does clear the ring, and it has


    enough

    Quoted message said:

    range to cover three rings, would it work with Ergo and a triple? The cage


    is

    Quoted message said:

    narrower, so I assume it would require more trimming. Perhaps more


    important,

    Quoted message said:

    the inner cage plate doesn't drop down as far. Would that seriously


    compromise

    Quoted message said:

    shifting? My friend is looking for simplicity, not a science project every


    time

    Quoted message said:

    he shifts.

    Thanks

    Mike Fennelly

    Report
  5. Qui Si Parla Ca
    Archived post
    #5

    crank-<< I'm rebuilding a friend's Richard Sachs with a new Record triple group. Everything was fine
    until I got to the front derailleur. It's a braze-on model, and I can't get it high enough to clear
    the 52 tooth outer ring. It is about 2 mm too low at the top of the slot >><BR><BR>

    File the slot and also trim the outside of the front der cage a wee bit. This is not uncommon with
    the longer arms of the triple front der, coupled with braze-on front der tabs which to put it in
    Sheldon's terms, 'are the work of Satan'...

    Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302
    (303)440-3535 vecchios.comvecchios.com "Ruote convenzionali costruite eccezionalmente bene"

    Report
  6. Russell Seaton
    Archived post
    #6

    Two ideas.
    1. Try a different triple front derailleur. Centaur if you want to stay Campagnolo. It might be
    different in shape and might have the clearance. Might. Or try Shimano. Dura Ace, Ultegra both
    have triple front derailleurs.

    2. File the outer cage of the Record front derailleur. Not the braze on tab on the frame. I
    presume its the outer cage on the front derailleur which hits the chainring. See where the
    cage hits the teeth. Get a Dremel and grind away some of the derailleur cage. Keep trying it
    and grinding a little away until it clears. A 2mm less tall outer front derailleur cage won't
    make any noticeable difference. And with a Dremel you should have lots of control over the
    grinding and with smoother stones can polish the ground edge up pretty well so no one can tell
    its been ground.

    [email hidden] (Crankyrigger) wrote in message news:<20040126014915.28471.00000753@mb-
    m01.news.cs.com>...

    Quoted message said:

    I'm rebuilding a friend's Richard Sachs with a new Record triple group. Everything was fine until
    I got to the front derailleur. It's a braze-on model, and I can't get it high enough to clear the
    52 tooth outer ring. It is about 2 mm too low at the top of the slot. I'm trying to get my friend
    back on the road quickly. I guess I could switch to a 50 tooth ring, but that wouldn't be the best
    solution for him. If I file the slot, I'll only have about 2 mm of metal left at the top. I don't
    like that idea, but would that be enough? The old derailleur is a 1991 Athena. It does clear the
    ring, and it has enough range to cover three rings, would it work with Ergo and a triple? The cage
    is narrower, so I assume it would require more trimming. Perhaps more important, the inner cage
    plate doesn't drop down as far. Would that seriously compromise shifting? My friend is looking for
    simplicity, not a science project every time he shifts.

    Thanks

    Mike Fennelly

    Report

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