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Thread: 1 3/8" headset?

  1. #1
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    Dec 2008
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    1 3/8" headset?

    I need to replace the original headset that came with my 1995 GT Ricochet. The headset is a Tioga "Alchemy."

    I measured the distance between the inner walls of the frame's head-tube and the distance is very close to 1-11/32" or 1-3/8". The diameter of the outer wall of the upper head-tube race that would contact the inner wall of the head-tube is 1-5/16" or 1-11/32".

    Apparently the standards for modern threadless headsets are 1" and 1 1/8". Where is that measurement coming from? The only measurement I found that is close to that measurement was the diameter of my steerer tube, but it was closer to 1 3/32".

    Does the Tioga "Alchemy" have a modern replacement?

  2. #2
    Low car diet JiveTurkey's Avatar
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    Aug 2007
    Corvallis, OR, USA
    My Bikes
    2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.
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    It is the outer diameter of the steerer tube.

    Look here:
    Quote Originally Posted by slopvehicle View Post
    Not wearing a helmet makes me more aware of my surroundings. I find myself anticipating the hardness of concrete 50 or 100 feet in front of me, it's almost a zen-like connection between my face and the pavement.

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