Campy bottom bracket "square peg" orientation

Discussion in 'Cycling Equipment' started by Michael, Apr 27, 2003.

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  1. Michael

    Michael Guest

    I have a design question concerning the new Campy Record carbon cranks, and I apologize in advance
    for my potential lack of proper terminology.

    On the carbon cranks the orientation of the hole where the bottom bracket connects to the crankarm
    one of the corners of the square points down the arm of the crank. On the forged cranks the flat
    side of the square points down the crankarm, i.e. the "peg hole" of the crankarms are turned 90
    degrees from one another. I was just curious as to why. Is it a matter of stresses that are put on
    one material compared to the other or what? I understand that in use there would be no percieved or
    felt difference just curious about the choice from a design standpoint.

    Thanks in advance.
     
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