Re: [CR]Campag Rally Rear Mech - Why ? With What ?

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Date: Tue, 22 Mar 2005 21:02:06 -0800 (PST)
From: "r cielec" <teaat4p@yahoo.com>
Subject: Re: [CR]Campag Rally Rear Mech - Why ? With What ?
To: classicrendezvous@bikelist.org
In-Reply-To: 6667


Campag Triple - I assume this is an "NR" triple. I didn't think Campag seriously made one. That is, I am of the impression these triples were sort of special order from Campag or a dealer mod and not a prominent item in the Campag catalogues. Half-hearted item in product line. So, Campag intended Rally rear, NR front, "NR" triple @ half-step ?

Rally with spring loaded upper pivot - Is this the one with what I recall to be a cast, perhaps, upper body/piece/chunk (?)

Thanks.

Richard Cielec Chicago, Illinois

Peter Jon White <lists@peterwhitecycles.com> wrote: r cielec wrote:
> Ahoy !
>
>
>
> I don't want to ignite any possible old controversy regarding the Rally rear mech; however, I remain puzzled as to how Campag may have envisioned its use. Of course, my assumptions could be compleatly off-base so, I’d welcome the correction and the lesson in rear mech. design and function.
>
> I understand the Rally to be a merely a long cage NR; that is, the parallelogram side plates are the same length as those of the NR.
>
> So, what is the purpose of the long cage? Chain take-up for what ? Max. rear cog would be same as NR rear. NR front cannot accommodate a small chain ring.
>
> Also, what front mech. was supposed to be used with the Rally ?
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> I believe some CR listers runs NR rear and front with max. largest cog in rear and min. ring in front. How would the Rally add benefit ?
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>
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> Thanks.
>
>
>
> Regards,
>

There were two rally RDs. One had a fixed upper pivot like the NR, and was about the worst piece of horsepucky I ever tried to make work.

The other was a rather good wide range rear derailleur with a spring loaded upper pivot. Campy needed to make a wide range derailleur to work with the triple crankset. The Rally was a perfect match.

If you set up the triple crank as a half step, the NR FD worked just duckily.

-- Peter Jon White Peter White Cycles 24 Hall Rd. Hillsborough, NH 03244 603 478 0900 Phone 603 478 0902 Phax http://www.PeterWhiteCycles.com

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