RE: [CR]Ernesto Colnago's geometry for Eddy Merckx

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Content-class: urn:content-classes:message
Subject: RE: [CR]Ernesto Colnago's geometry for Eddy Merckx
Date: Sun, 24 Dec 2006 00:29:47 -0800
In-Reply-To: <D21CD90E-B691-4ACA-AA1F-9694FAEE5277@earthlink.net>
Thread-Topic: [CR]Ernesto Colnago's geometry for Eddy Merckx
Thread-Index: AccnMNGa40RqKxDgS4qus3ZW6pw7bwAAsorA
From: "Mark Bulgier" <Mark@bulgier.net>
To: "Chuck Schmidt" <chuckschmidt@earthlink.net>, "CR RENDEZVOUS" <classicrendezvous@bikelist.org>


Chuck Schmidt wrote:
>
> Ernesto Colnago's builder cards showing the geometry of seven
> frames made for Eddy Merckx in the early 1970s.
>
> http://www.colnagonews.com/prova2/storia/geometrie/merckx.php
>

This is immeasurably cool. Too bad they don't give angles, rake &c.

Weird that his top tube varied from 54.5 to 58.5 in that period. Also, the numbers near the seatlug, if they indicate setback, mean his seat angle varied over a wide range also.

I like the one that says the Sterzo (steerer?) is "Come Sempre" ("like always"?) (pardon my near-nonexistent Italian and correct me if you know the real translation). That one also says (I think) the chainstays are to be "5 mm longer than the last one". The chainstay length on the last (of these 7) is 43 cm, so we're talking some pretty long c-stays here.

Check out the little numbers next to the tubes on the Record Ora: possibly tube gauges? If so the tubes are even lighter than Columbus Record, which I always assumed was the tubing used for Eddy's hour bike.

Mark Bulgier
Seattle WA USA