[CR]Stack Height

(Example: History)

Date: Mon, 04 Feb 2002 21:08:13 -0800
From: "Jim Allen" <jimallen@nctimes.net>
To: "Mark A. Perkins" <bicyclemark@juno.com>
Cc: nickzz@mindspring.com, classicrendezvous@bikelist.org
References: <20020204.195206.-66857.10.bicyclemark@juno.com>
Subject: [CR]Stack Height


Sutherlands is concerned with fitting forks to existing frames. The stack height is used to determine the length of the steerer to fit a particular headset and headtube.


Jim Allen

Mark A. Perkins wrote:
> Hello again everyone:
> Seeing all of these messages mentioning stack heights has brought to mind
> a question I have regarding this dimension.
> If you are referring to a listed measurment such as in a Sutherland's
> Manual (mine is in storage at present - several hundred miles away), does
> the measurement include the upper as well as the lower components of the
> headset? For it is only the lower components which will make a
> difference in the relationship between the fork crown and the bottom of
> the head-tube.
> When I designed each of the 5 frames that I have built, I had the headset
> before I began, and I measured only the lower components. This way I
> knew exactly how much space would be needed to use whichever headset was
> chosen. I'm not certain, but I believe the numbers I came up with were
> not the same as those listed in Sutherland's.
> I suspect that if these stack heights are listed somewhere, that they may
> be including the upper components. I do not remember how Sutherland's
> lists them, so I am asking. Anyone?
> "Bicycle Mark" Perkins
> Fresno Cycling Club - Historian
> Fresno, California, U.S.A.
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