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Thread: chain length

  1. #1
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    chain length

    i am changing my ultegra cassette from a 11-25 to 12-27- will i need to lengthen my chain or still be able to use my old one (with very little wear)????

  2. #2
    Senior Member BAC5.2's Avatar
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    New chain.

    You shouldn't need to lengthen it, but get a new chain anyway. And measure it out correctly
    2003 Banshee Scream. Banshee Pride!

  3. #3
    Senior Member miamijim's Avatar
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    You may need a longer chain. By changing to a larger rear cog the overall circumferance of your drivetrain is larger. This means you may need a longer chain. Shift into the big/big combination. Is you chain taught or is there some looseness to it? If its taught you need to go longer.....

    Just remember you only need a link or 2 longer, any more than that may give un-wanted slack in the small/small
    WWW.CYCLESPEUGEOT.COM 2005 Pinarello Dogma; 1991 Paramount PDG 70 Mtb; 1976? AD Vent Noir; 1989 LeMond Maillot Juane F&F; 1993? Basso GAP F&F; 1989 Terry Symmetry; 2003 Trek 4700 Mtb; 1983 Vitus 979

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