Re: [CR]Vintage Racebike Geometry

(Example: Framebuilders:Norman Taylor)

Date: Sun, 06 Feb 2005 21:49:10 -0800
From: "Chuck Schmidt" <chuckschmidt@earthlink.net>
To: classicrendezvous@bikelist.org
Subject: Re: [CR]Vintage Racebike Geometry
References: <4206F983.496F5FA1@earthlink.net>


Man, the anticipation is killing me... just waiting for you all to share the measurements of your bikes so we can all learn something new here on the CR list about vintage lightweights and how their geometry changed. WOW! THIS IS REALLY EXCITING ISN'T IT?!?!?!? HAPPY HAPPY JOY JOY

Chuck Schmidt South Pasadena, Southern California

Chuck Schmidt wrote:
>
> The results so far... (anyone else care to contribute?)
>
> 1939 Bianchi #718923-0
> (c to c)
> Seat Tube -- 54.0cm
> Top Tube -- 58.0cm
> BB Drop -- 8.0cm
> Chain Stay -- 46.0cm
> Wheel Base -- 110.0cm
> Seat Tube < -- 71.5°
> Head Tube < -- 70.0°
> Fork Rake -- 8.0cm
> Trail -- 4.0cm*
> *wheel dia. 68.5cm
>
> 1950 Bianchi Folgorissima #287197 (P-R derailleur)
> (c to c)
> Seat Tube -- 57.0cm
> Top Tube -- 57.0cm
> BB Drop -- 8.2cm
> Chain Stay -- 45.0cm
> Wheel Base -- 104.0cm
> Seat Tube < -- 73.00°
> Head Tube < -- 74.25°
> Fork Rake -- 6.0cm
> Trail -- 3.4cm*
> *wheel dia. 68.5cm
>
> 1950 Learco Guerra (Cambio Corsa) Jan Heine
> (c to c)
> Seat Tube -- 58.6cm
> Top tube -- 57.2cm
> BB Drop -- 7.7cm
> Chain Stay -- 43.5cm
> Wheel Base -- 102.0cm
> Seat Tube < -- 71.5°
> Head Tube < -- 72.5°
> Fork Rake -- 5.7cm
> Trail -- 4.9cm*
> *wheel dia. 69.0cm
>
> 1960 Cinelli SC #7094
> (c to c)
> Seat Tube -- 55.5cm
> Top Tube -- 56.0cm
> BB Drop -- 8.0cm
> Chain Stay -- 42.5cm
> Wheel Base -- 102.0cm
> Seat Tube < -- 73.0°
> Head Tube < -- 73.0°
> Fork Rake -- 5.5cm
> Trail -- 4.6cm*
> *wheel dia. 68.0cm
>
> 1962 Masi Special (Michael Allison)
> (c to c)
> Seat Tube -- 56cm
> Top Tube -- 56cm
> BB Drop -- 8cm
> Chain Stay -- 44.5cm
> Wheel Base -- 104cm
> Seat Tube < -- 72.0°
> Head Tube < -- 72.0°
> Fork Rake -- 5.0cm
> Trail -- 5.8cm*
> *wheel dia. 68.0cm
>
> 1963 Masi Special
> (c to c)
> Seat Tube -- 56.0cm
> Top Tube -- 56.0cm
> BB Drop -- 8.0cm
> Chain Stay -- 44.0cm
> Wheel Base -- 103.0cm
> Seat Tube < -- 73.5°
> Head Tube < -- 73.5°
> Fork Rake -- 5.5cm
> Trail -- 4.3cm*
> *wheel dia. 68.0cm
>
> 1980 Colnago Super
> (c to c)
> Seat Tube -- 55.5cm
> Top Tube -- 55.5cm
> BB Drop -- 7.0cm
> Chain Stay -- 41.7cm
> Wheel Base -- 100.0cm
> Seat Tube < -- 74.0°
> Head Tube < -- 74.0°
> Fork Rake -- 4.6cm
> Trail -- 4.9cm*
> *wheel dia. 67.5cm
>
> Trail calculation http://www.kreuzotter.de/english/elenk.htm
>
> Chuck Schmidt
> South Pasadena, Southern California
>
> .