Tiagra Shifter problems

Discussion in 'Cycling Equipment' started by JohnMackey, May 29, 2004.

  1. JohnMackey

    JohnMackey New Member

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    I recently bought a Giant OCR-2 with the Tiagra shifters and front derailleur. I noticed fairly quickly that it didn't like to shift to the smallest chainring, but I wasn't fussed about it (flat terrain locally), and figured it was a minor adjustment issue that I would get around to sometime.

    Last week, I suffered a moderate wipeout, and sent the bike to the shop to be completely checked over. The shifters suffered some minor cosmetic damage, but certainly nothing serious looking.

    When I got the bike back, it was clear the shop had completely botched the derailleur adjustments, so I took it upon myself to adjust them (I even downloaded the service data from Shimano...). With the cable on the front derailleur disconnected, I discovered something I though very odd - the front shifter seems to have FOUR positions. After much fiddling, I now how what I think is a working setup, and I can now get the chain on the smallest chainring. The "extra" position generally keeps the chain on the intermediate chainring, and is somewhat useful in that I can eliminate chain rub on the front derailleur through the whole sprocket range.

    But is this normal? Maybe I am old fashioned, but I assumed the front shifter would have THREE positions to match the number of chainrings... Have I messed up the adjustments completely? Is this thing going to self destruct on the next long ride?
     
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  2. boudreaux

    boudreaux New Member

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    The shifter also has i trim postions in addition to positions for each of the 3 chainrngs.
     
  3. natewilkes

    natewilkes New Member

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    i have noticed this on my bike too. good thing i am upgrading in the near future. never going back to tiagra again.:mad:
     
  4. fushman

    fushman New Member

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    ya i think campy has like 20 positions its tite
     
  5. boudreaux

    boudreaux New Member

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    Better go Campy then. Tiagra works the same as 105 and ultegra,and not that differently from a DA triple front shifter.
     
  6. natewilkes

    natewilkes New Member

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    are all campy setups decent, or are there Sora and Tiagra equivalents?
     
  7. boudreaux

    boudreaux New Member

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    Ya think campy does not make some bottom of the barrel stuff?
     
  8. fushman

    fushman New Member

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    i dont think so according to their web site xenon sounds almost as cool as record
     
  9. boudreaux

    boudreaux New Member

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    That's why they pay the marketing guys the big bucks.
     
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