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  1. #1
    Composed Mainly of Beer
    Join Date
    Nov 2005
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    South Austin, Texas
    My Bikes
    Surly CrossCheck, Centurion CompTA, Schwinn Mirada
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    Replace Tiagra cassette cogs?

    Can I replace the 25t cog on my stock Tiagra cassette on my CrossCheck with a larger one?
    I see that Harris Cyclery has either 27t or 29t Miche cogs that are Shimano compatible.
    Would it just be a matter of undoing a hex nut or grinding down the rivet?

    Thanks!
    Lambo
    1984 Centurion Comp TA
    2001 Surly Cross Check - bean green, baby
    1985 Schwinn Mirada beater/commuter

  2. #2
    Gone, but not forgotten Sheldon Brown's Avatar
    Join Date
    Jul 2002
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    Newtonville, Massachusetts
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    See: http://sheldonbrown.org/bicycles
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    Quote Originally Posted by Lambo View Post
    Can I replace the 25t cog on my stock Tiagra cassette on my CrossCheck with a larger one?
    I see that Harris Cyclery has either 27t or 29t Miche cogs that are Shimano compatible.
    Would it just be a matter of undoing a hex nut or grinding down the rivet?
    Yes, you could do that. We also have 28 tooth genuine Shimano sprockets, I believe.

    Sheldon "The Real Thing" Brown
    [COLOR=blue][CENTER][b]Harris Cyclery, West Newton, Massachusetts[/b]
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