Road Cycling · Public discussion

Tiagra Shifting - probem?

Started by Kerry · · Last activity · 4 posts · 690 views

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Road Cycling
Published
23 December 2003
Last activity
30 December 2003
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Kerry
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  1. Nice day on Saturday here in the midwest so I took my road bike out for a spin. Shifting during the
    ride seemed to be a little slow (I blame that on cleaning which needs to be done), but one aspect
    concerns me.

    Its always on the upshift. If you dont throw the inner lever perfectly in a horizontal movement, you
    end up catching on the brake lever shifter, and downshift instead. The throw almost needs to be
    horizontal or toward the rider to eliminate this. It seems to be a slow progression to this stage.

    Doesn't look dirty or have debris between the two shifters.

    Anyone else experience this or have any solutions?

    Kerry

  2. In article <[email hidden]>, "Kerry" <k=20 n i k o l a i s e n@s b c g
    lo b a l.net> says...

    Quoted message said:

    Nice day on Saturday here in the midwest so I took my road bike out for a spin. Shifting during
    the ride seemed to be a little slow (I blame that =


    on

    Quoted message said:

    cleaning which needs to be done), but one aspect concerns me.
    =20
    Its always on the upshift. If you dont throw the inner lever perfectly i=


    n a

    Quoted message said:

    horizontal movement, you end up catching on the brake lever shifter, and downshift instead. The
    throw almost needs to be horizontal or toward the rider to eliminate this. It seems to be a slow
    progression to this stage=


    .

    Quoted message said:

    =20
    Doesn't look dirty or have debris between the two shifters.
    =20
    Anyone else experience this or have any solutions?

    I have Tiagra shifters on my tourer, and have no such problem. If=20 you're sure there's no debris
    in the mechanism, it sounds like the=20 pivot on the inner lever might be loose (have too much
    play), allowing=20 it to move out just a bit and catch the brake lever.

    I was out last Saturday in about 34=B0, and noticed that the front was a=20 bit stiff on the
    downshift, but I attributed that to stiff lubricants=20 in the cold weather. =20

    I had no problems with the rear at all; I had just put a brand new=20 Ultegra 11-23 cassette in
    place of the original SRAM 11-32, and wanted=20 to see if the shifting performance would be
    changed, but I could=20 detect no differences. The wide-range Deore derailleur seemed to=20 handle
    it just fine.

    --=20 Dave Kerber Fight spam: remove the ns_ from the return address before replying!

    REAL programmers write self-modifying code.

  3. "Kerry" <k n i k o l a i s e n@s b c g lo b a l.net> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    Nice day on Saturday here in the midwest so I took my road bike out for a spin. Shifting during
    the ride seemed to be a little slow (I blame that


    on

    Quoted message said:

    cleaning which needs to be done), but one aspect concerns me.

    Its always on the upshift. If you dont throw the inner lever perfectly in


    a

    Quoted message said:

    horizontal movement, you end up catching on the brake lever shifter, and downshift instead. The
    throw almost needs to be horizontal or toward the rider to eliminate this. It seems to be a slow
    progression to this stage.

    Doesn't look dirty or have debris between the two shifters.

    Anyone else experience this or have any solutions?


    The "fix" is to *flush* your STI levers with WD-40 or some other solvent. For more see here:

    chainreaction.comnoisystilevers.htm

    If this doesn't work, you're probably due for a new set of levers. Alternatively, you could try one
    of these other fixes, but good luck...

    Steve Alkire's 105/8spd disassembly/assembly
    cyclingforum.comSTIdisDetail.doc

    Bill Cotton's STI repair: billcotton.comsti shifter repair.htm

  4. Kerry said:

    Nice day on Saturday here in the midwest so I took my road bike out for a spin. Shifting during
    the ride seemed to be a little slow (I blame that on cleaning which needs to be done), but one
    aspect concerns me.

    Its always on the upshift. If you dont throw the inner lever perfectly in a horizontal
    movement, you end up catching on the brake lever shifter, and downshift instead. The throw
    almost needs to be horizontal or toward the rider to eliminate this. It seems to be a slow
    progression to this stage.

    Doesn't look dirty or have debris between the two shifters.

    Anyone else experience this or have any solutions?

    I have that problem with my Ultegras sometimes, but the progression is rapid -- the problem appears
    immediately upon the arrival of winter, and the wearing of full fingered gloves.

    :-)

    Matt O.

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