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  1. #1
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    Miche Advanced and IRD BB compatibility.

    Will an IRD QB-75 JIS BB be compatible with the Miche Advanced Crank? I can't find a definitive answer.

    Miche Advanced Specs:
    Arm Length: 165.0 mm
    Rings: 46
    Spindle Interface Type: Square Taper ISO
    Spindle Length: 107 mm
    Chainring BCD: 144 mm
    Bolt Pattern: 5-Bolt
    Crank/FD Type: Single Ring
    Chain Compatibility: 1/2" x 1/8"
    Pedal Spindle: 9/16"

    The IRD is an English 68mm Shell, 107mm Spindle Length, square taper.
    Kill Poverty Not Panthers.

  2. #2
    Villainous huerro's Avatar
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    It depends on your definition of compatible. The manufacturers of those cranks will tell you "No, do not put our ISO cranks on a JIS spindle." If you can't deal with ambiguity or uncertainty, I would take that as the definitive answer.

    read more here:

    http://www.sheldonbrown.com/bbtaper.html

    EDIT: Also, it will not give you the chain line you want.
    Last edited by huerro; 05-23-08 at 02:19 PM.

  3. #3
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    Thanks. Great answer. (Sheldon Brown was amazing.)
    Kill Poverty Not Panthers.

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