Stem angles

Discussion in 'Cycling Equipment' started by Colavita/ACT10, Jun 28, 2009.

  1. Colavita/ACT10

    Colavita/ACT10 New Member

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    Hey everyone,

    I am so confused about stem angles. Currently I have +/-7 degree stem. It is for 26.0 bars and I need one for 31.8. I am looking at different stems and I see some stems that have an angle of 97 degrees. Is this the same thing +/- 7 degrees?

    Thanks.
     
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  2. alfeng

    alfeng Well-Known Member

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    On an older QUILL stem, the angle is measured relative to the HORIZONTAL == 0ยบ ...

    The actual angle relative to the Horizon varies with the frame's headtube angle.

    On a stem that fits on a threadless steerer, it usually represents the angle relative to the steerer.

    I don't know what that '97 degree' number represents.
     
  3. Camilo

    Camilo New Member

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    Angles are sometimes expressed simply and plainly: +/- 7 degrees or 0 degrees for instance. Maybe not so simply or plainly because those degrees are actually relative to a right angle (90 degrees).

    Othertimes, they're expressed as actual angles like "90", "96/84", "107/73". In those cases, the way to translate to the above is to simply subtract 90 from the numbers:

    "90" = 0
    "96/84" = +/- 6
    "107/73" = +/- 17
     
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