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  1. #1
    Senior Member freeranger's Avatar
    Join Date
    Jun 2005
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    Kentucky
    My Bikes
    06 Lemond Reno, 98 GT Timberline mtn.bike
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    Btm.Bracket size?........

    I know I can take it apart & it should be printed on the btm bracket, but thought I'd have one ready so I can slap it back together after taking it apart. 1998 GT Timberline--square taper btm.bracket-anyone know the size--I think it is a 68 x 113, but I'm not positive. Doesn't sound real great after todays ride-may or may not last thru this season.

  2. #2
    Who cares, just ride it!
    Join Date
    Jun 2006
    Location
    Melbourne
    My Bikes
    1992ish Davidson Impulse, 1981 Apollo Gran Sport SS, 2006 Salsa Las Cruces, 2010 Soma Double Cross
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    May be oversized 73mm, but most likely 68mm...
    N-1 is my long-term goal

  3. #3
    Senior Member MudPie's Avatar
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    May 2004
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    When in doubt, you can measure:

    a) width of bottom bracket shell - most likely, it will either be 68 or 73mm.

    b) length of spindle (take off the crank arms). This is a little tricky since you probably won't have direct access to the spindle ends with a ruler. If you have a pair of calipers, then you're good to go. If you only have a ruler, you can have someone hold straight edges against the end of the spindle and you can measure the distance between the two straight edges.

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