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  1. #1
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    Can Sora shifters be used with older system?

    Can I buy a set of Sora 7 speed shifters and use them on my 1990 Schwinn Prologue with a 7 speed 600 SIS system. It's still a 7 speed and set up for indexing. Does this work or do I need a different derailleur and freewheel spacing for the indexing to work?

  2. #2
    cs1
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    It will work perfectly. Harris Cyclery sells a lot of them for that exact purpose.


    Tim
    1999 Waterford RSE-11, 1995 Waterford 1200, 1989 Specialized Rockhopper Comp
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    1984 Specialized Stumpjumper, 1986 Specialized Stumpjumper and just way too many projects to list.

  3. #3
    CERVEL-LIZED! BHBiker's Avatar
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    yes it does. I used a 7 speed Sora for the 7 speed SIS

  4. #4
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    might need a new front mech though. I'm not sure that mechs expecting friction will work with indexing..

  5. #5
    Gone, but not forgotten Sheldon Brown's Avatar
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    Quote Originally Posted by acorn_user
    might need a new front mech though. I'm not sure that mechs expecting friction will work with indexing..
    This is an issue with triples, but doubles are MUCH less fussy.

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  6. #6
    The Improbable Bulk Little Darwin's Avatar
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    I'm glad I got confirmation, I was thinking of this exact thing for my bike... also 7 speed Shimano 600.

    It is a good feeling to have your assumptions validated before buying.
    Slow Ride Cyclists of NEPA

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  7. #7
    Senior Member DieselDan's Avatar
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    You could just buy a right 7-speed Shimano brifter and use the downtube shifter for the front.
    Bikes use brakes to stop.

    If your bike has breaks, don't ride it.

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