Re: [CR] Anyone refit a NR rear derailleur to a Rally


Example: Framebuilding

From: Leonard Bulger <lbulger@comcast.net>
To: Louis Schulman <louiss@gate.net>
In-Reply-To: <4A00EB0A.2080100@gate.net>
Date: Tue, 5 May 2009 22:03:09 -0400
References: <01D2E29E-46B9-46C1-9683-59167468E684@comcast.net>
Cc: classicrendezvous@bikelist.org
Subject: Re: [CR] Anyone refit a NR rear derailleur to a Rally


Thanks for the advice. I'll try it this weekend.

Leonard Bulger Marblehead, MA USA

On May 5, 2009, at 9:42 PM, Louis Schulman wrote:
> I agree the combination in the picture, using a Super Record cage,
> works well. But the one in the picture is not adjusted well. The
> upper pivot spring has too much tension in relation to the lower
> pivot spring, and thus the chain is being pulled away from the
> freewheel. It may be necessary to drill a few holes to adjust the
> spring tension properly.
>
> Unfortunately, it is not that easy to properly balance the spring
> tension on this derailleur, but that is the secret to good shifting.
>
> Louis Schulman
> Tampa, Florida USA
>
> Leonard Bulger wrote:
>> I put a Rally cage on a Nuovo Record, but it didn't shift too
>> well. I tried a double sprung Rally on a short, horizontal Campy
>> racing style dropout with a modern freewheel, and it shifted
>> great. The combination shown here works well too:
>> http://www.flickr.com/photos/9850417@N04/
>> The Spence modified Record looks like it has a Simplex top pulley
>> (Rigidex or 303 Tourist perhaps) and a Cyclo bottom pulley. I once
>> had a Gran Sport that was modded with Rigidex cage. It wasn't by
>> Spence, but the Desiree guy in Santa Barbara whose name I've
>> forgotten.
>> Leonard Bulger
>> Marblhead, MA USA