Re: [CR] Campagnolo Gran Sport rear derailleur with sprung top pivot

(Example: Framebuilding:Technology)

From: "brian blum" <bbspokes@hotmail.com>
To: <paul.lee@aeroflex.com>, <classicrendezvous@bikelist.org>
Date: Fri, 25 Jun 2010 08:32:17 -0700
In-Reply-To: <9044AC0DFE57D142B393E2E1684E94E001320860@EVS1.aeroflex.corp>
References: <9044AC0DFE57D142B393E2E1684E94E001320860@EVS1.aeroflex.corp>
Cc: jswan@optonline.net
Subject: Re: [CR] Campagnolo Gran Sport rear derailleur with sprung top pivot


Can you show me side and top views of the top pivot. I don't think that is what I have but your views don't show the top pivot well. Brian
> Subject: Re: [CR] Campagnolo Gran Sport rear derailleur with sprung top pivot
> Date: Fri, 25 Jun 2010 10:46:55 -0400
> From: Paul.Lee@aeroflex.com
> To: classicrendezvous@bikelist.org
> CC: bbspokes@hotmail.com; jswan@optonline.net
>
> Hi Brian,
>
> I created a similar hybrid derailleur from a twisted wreck of a
> Campagnolo Gran Sport and a decent condition single pulley Sport. In my
> case I just replaced the non-pivoting bottom of the Sport with the
> bottom section of the Gran Sport. I thought there might be a more
> graceful method of accomplishing the swap but after consulting with my
> favorite local machinist, Jamie Swan, we just beat on it with a punch
> and hammer. The Sport's pins are a bit short for the Gran Sport section
> so I may swap them out for longer ones someday. So, it is possible to
> create such a hybrid, the parts fit well enough, but I don't know how
> common it was.
>
> http://picasaweb.google.com/Paul.BVVW.Lee/CampySportFrankenstein?feat=di
> rectlink
>
> I had planned to put it on an old Frejus that I was building up for
> Cirque that had a non-Campagnolo dropout/hanger with a hole for the
> Sport's spring but ended up using a Sturmey Archer 5 speed hub instead.
> The Frankenstein derailleur will go on it in a future reconfiguration.
>
> Paul Lee
> Huntington, New York USA
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