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  1. #1
    Senior Member
    Join Date
    Feb 2007
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    Austin, TX
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    Carbon Fuji, Cannondale Caad 8, Schwinn Homegrown
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    Ultegra SL dumping chain...

    Hey guys,

    I've got a bike set up with the new Shimano Ultegra SL. I've had it in the bike shop twice now trying to get the front derailer to shift properly. 3 out of 5 times when I shift from the big ring to the small ring it drops the chain (when in the lowest gear on my cassette - it doesn't do it otherwise).

    Could the inside derailer stop be set wrong or is this user error?

    Any suggestions will be appreciated.

    -Spessx

  2. #2
    cab horn
    Join Date
    Jun 2004
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    Toronto
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    1987 Bianchi Campione
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    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  3. #3
    Oldschool
    Join Date
    Jun 2008
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    If by lowest gear on your cassette you mean easiest (also, "largest"), then your problem could stem from being in a large-large combination, which most derailleurs aren't designed to handle, my recommendation would be to avoid that combination, (does it work on the second, or third largest cogs?). Also, unless your chain rubs on the inside of the front derailleur when you're in the easiest combination on the bicycle the low stop could be a little higher.

    Good luck with it.

  4. #4
    Senior Member
    Join Date
    Jan 2007
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    Dublin, Ireland
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    Surly Cross Check, Surly Big Dummy, Brompton M3L
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    I went from big-big to small-big on my bike and ended up with the rear derailleur stuck in my spokes. It's generally not recommended as pointed out above and it seems from your post that it works when not in big-big.

  5. #5
    Senior Member
    Join Date
    Apr 2007
    Location
    Nolensville, TN
    My Bikes
    Nishiki Sport 10 spd, Trek 730 MultiTrack hybrid, 1987 Marin Muirwoods, Fuji MT-350, Fuji Sandblaster, Raleigh Sprite and several others
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    The big-big combination should be avoided but you should be able to remedy said situation by increasing fder cable tension to slow the chain and allow it to land on the inner ring instead of overshooting.
    Turn fder adjuster counterclockwise to increase tension; try 1-2 turns at a time but check to ensure up and downshifting still functions as desired. AVOID BIG-BIG!!! VERY ROUGH ON EQUIP., SHIFT FDER INSTEAD.

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