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  1. #1
    Senior Member nismosr's Avatar
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    Triple to Double Crankset what I need to know

    Hi,

    My brother's bike a 9 speed Triple Chainring with 105 shifter and FD. If we change the crankset to Double - Do I need to replace the shifter and the FD ? Thank you

  2. #2
    Senior Member
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    No, 105 shifters work either way, double or triple.

  3. #3
    Senior Member nismosr's Avatar
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    OK . I guess FD Crank and BB and RD also since it's a lon cage ?

  4. #4
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    From triple to double you don't have to change the derailleurs, that's up to you.

  5. #5
    Senior Member nismosr's Avatar
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    I could still use both derailleurs and just change the Crank and BB ?

  6. #6
    The Improbable Bulk Little Darwin's Avatar
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    Depending on your objective:

    You could just remove the inner ring and change the BB to a slightly shorter spindle.

    Or just take off the inner ring and set the low limit screw on the FD.

    Or, just pretend the inner ring isn't there.

    So yeah... The derailleurs and shifters will work fine.
    Slow Ride Cyclists of NEPA

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  7. #7
    Senior Member nismosr's Avatar
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    Thank You!

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