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  1. #1
    Numbnuts
    Join Date
    May 2005
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    Bozeman, MT
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    KHS 555, Trek 820 converted to cruiser/winter bike, Trek 520 singlespeed conversion.
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    9-speed compatable crank question

    Can I run a 8-speed chain and derallieur on a crank designed for a 9-speed chain?

  2. #2
    Senior Member
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    Dec 2003
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    Richmond, VA
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    Front derailleurs and cranks are just about always compatible with both 8/9 speed.

    The rear derailleur is not compatible with both. You cannot use an 8 speed chain on a 9 speed derailleur.

  3. #3
    I drink your MILKSHAKE Raiyn's Avatar
    Join Date
    Jul 2002
    Location
    St. Petersburg, FL
    My Bikes
    2003 Specialized Rockhopper FSR Comp, 1999 Specialized Hardrock Comp FS, 1971 Schwinn Varsity
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    Quote Originally Posted by gwhunt23
    The rear derailleur is not compatible with both. You cannot use an 8 speed chain on a 9 speed derailleur.
    Applesauce. It's only the cassette that cares what chain you run.

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