does changing cogs require new a new chain?- Mtbr.com
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  1. #1
    mtbr member
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    does changing cogs require new a new chain?

    Does anyone know if going from an 18t to a 20t cog require a new chain and buying spacers if the new cog is a different thickness?

  2. #2
    Space Ghost
    Reputation: Coach417's Avatar
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    More than likely you will need a new chain if your tensioner can't move the cranks closer to the rr. wheel. Also yes on the spacer issue. If your new cog is thinner, then yes you will need additional spacer/s.
    "No good deed goes unpunished"

  3. #3
    Kiss my Grits!
    Reputation: Chim Chim's Avatar
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    The cogs should be the same thickness, so that isn't a problem. As for changing your chain, it is probably a good idea, especially if you run inexpensive chains like I do; what's another $10.
    Sometimes, with a very strenuous effort, I will fatigue.

  4. #4
    I Have Cookies
    Reputation: ae111black's Avatar
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    Dec 2008
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    I did on mine last week and ran the same chain but I have horiz drop outs.
    The most important thing is what God thinks about it. He will have the final say. Joshua Stinebrink

    ____
    Kimo

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