Does anyone have information or experience about the typical wedge angle for quill stems?
Saint Sheldon doesn't mention a specific angle, but I did find an ISO document of dubious brevity that claims it's supposed to be 36 degrees since 1990. Measuring a stem (early 90s I think) I have with me, I'm getting more like 34 degrees.
Jean-François
References: http://www.sheldonbrown.com/gloss_w.html#wedgebolt http://www.sheldonbrown.com/gloss_w.html#wedgebolt https://www.evs.ee/preview/iso-8562-1990-en.pdf https://www.evs.ee/preview/iso-8562-1990-en.pdf
I've custom cut several quill stems to shorten them, but never measured the angle of the cut.
Typically I cut the quill with a hacksaw by eye, and then use the wedge and a flat surface as a gauge as I file the quill down the rest of the way.
It takes awhile, but it has always worked well.
cyclista Nicholas
On 2018-04-10 20:33, Jean-François Caron wrote:
Does anyone have information or experience about the typical wedge angle for quill stems?
Saint Sheldon doesn't mention a specific angle, but I did find an ISO document of dubious brevity that claims it's supposed to be 36 degrees since 1990. Measuring a stem (early 90s I think) I have with me, I'm getting more like 34 degrees.
Jean-François
References: http://www.sheldonbrown.com/gloss_w.html#wedgebolt http://www.sheldonbrown.com/gloss_w.html#wedgebolt https://www.evs.ee/preview/iso-8562-1990-en.pdf https://www.evs.ee/preview/iso-8562-1990-en.pdf
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Jean-François Caron