Richard C', Framebuilder's specify chainstay length two ways, either measured parallel to the frame's central plane, OR, measured along the side of the chainstay, from center of bottom bracket shell to center of dropout.
Some dropouts yield one wheel position only, others a range of wheel postition, but with the wide-rangers, the builder measues to the midway axle position in the dropout slot.
Now then, it is tue that there is a substantial
difference (close to a half centimeter is what I
recall) between measuring along the centerline of the
frame's central plane (i.e., in line with the main
triangle, not the stays) and measuring along the stay
-- on a naked frame -- BUT, when you measure with the
parts ON, from the center of the crank bolt to the
center of the skewer, the difference between this
measured dimension via your tape and Richard S's
stated dimension as he jigs along the central plane,
is about one fucking millimeter.
Starck,
Joe
> you can't measure it.
> it's the virtual centerline from the bb center
> to the axle center. you fixture for it, but after
> the bicycle is assembled it is only an approx-
> imation. that's as close as you get - you're going
> to use a tapemeasure on the diagonal, skewed by
> the cranks and qr - those parts yield a diff
> measure.
> e-RICHIE®©
> Richard M Sachs
> Chester, CT
> site: http://www.richardsachs.com
> pics: http://photos.yahoo.com/
> rants: http://richardsachs.blogspot.com/
> zany: http://tinyurl.com/
>
>
>
>
> On Wed, 11 Aug 2004 10:47:50 -0700 (PDT) r cielec
> <teaat4p@yahoo.com>
> writes:
> > Richard:
> > How did you measure it? From where to where?
> > Thanks
> > Richard Cielec
> > Chicago, Illlinois
> >
> > Richard M Sachs <richardsachs@juno.com> wrote:
> > mine has 42cm stays and it's bitchin'.
>
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