BB shell sizing i.e) X-7 vs 357 ???- Mtbr.com
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  1. #1

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    Join Date
    Aug 2007
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    329

    BB shell sizing i.e) X-7 vs 357 ???

    In the process of completely rebuilding my X-7, I had bought the wrong sized crank for it. I bought one with an 83mm bottom brackett to match the 57mm chain line for 150mm spacing.

    Little did I know that the BB shell was 68mm in length. I'm curious to know as to why haro spec'd the 357 with an 83mm BB shell, and the X-7 with a 68mm BB shell, but both of them have 150mm spacing???

    kind of rediculous.. Come to think of it, I do run into a few more Drive train problems with my X-7 as opposed to my 357.

    can anybody answer this?
    Last edited by Gravity Assist; 10-02-2007 at 06:34 AM.

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