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Thread: gear inches

  1. #1
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    gear inches

    May be a silly question---If I mix and match cogs and chainrings,if the gear inch value is the same,will that mean that the chain length will work for all combos?(I have converted a multispeed)
    Tx

  2. #2
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    no. the combined cog/chainring tooth count will need to be constant (or at least close to it) if you want to use the same chain.
    i won't deny it i'm a straight ridah

  3. #3
    GONE~
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    Let say you have running a 48/18 ratio, it has a gear inches of 70.3 with 23c tires, but 43/16 gives you about 70.6.
    That's a huge different in chain length, you have to shorten/lengthen your chain to make it work.

  4. #4
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    Tx guys---clear now

  5. #5
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    48/15, 16,17,18,19 and 46/19 - using the same chain length. Depends on where your axle is at in the dropouts.

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