Re: [CR]Questions about the Mavic 801/851 (SSC) rear derailleur

(Example: Production Builders:Frejus)

From: "Jeremy Rauch" <classic2@cadre.org>
To: Classic Rendezvous <classicrendezvous@bikelist.org>
In-Reply-To: <44818cc20801281525m6cb97e38vb813b26b67035cd1@mail.gmail.com>
Subject: Re: [CR]Questions about the Mavic 801/851 (SSC) rear derailleur
Date: Mon, 28 Jan 2008 18:58:27 -0500
References: <D870529B-19DE-4EDD-A391-9D3819FF1B91@gmail.com>


The 851 and 801 are identical -- the only part numbers that differ are those of the 2 parallelogram arms. The 851 arms are anodized, while the 801's are not.

For the OP: the stop you have is probably not original -- thats the stop issued with the 800 derailleur. The 801 and 851 would have the pressed steel version. However, the (basic) design of the 800, 801 and the 851 is the same, so the stop you have should work correctly.

From what I can tell, the 800/801/851 designed lasted from 1978-1989. Quite the run, given what else was available.

The 840 is a great, Shimano-geometry compatible derailleur, thats a good 7 years after the list cutoff date, so I'll say no more -- but I will HIGHLY recommend Chuck Schmidt's Mavic catalog reprints. Indispensable resource if you're a Mavic fan.

Jeremy Rauch Brooklyn, NY

On Jan 28, 2008, at 6:25 PM, coel canth wrote:
> if I'm not mistaken, the 801 and 851 derailleurs are slightly
> different
> designs,,
> the 801 basically being a copy of the Nuovo Record, with pivot located
> almost centrally between the two pulleys.
> the 851 has a pivot located more in line with the upper pulley,
> similar to
> the later Campy Super Record mechanism.. Neither of these has a
> sprung upper
> pivot and probably operate just like the models that inspired them.
> I'm not
> really sure why they didn't incorporate Simplex's innovation..
> perhaps it
> was patented and defended well ? maybe some national loyalty came
> into
> play... ?
>
> if you'd like better performance maybe you'd be interested in the (i
> guess)
> off-topic Mavic 840 ? it has a slant parallelogram design and a
> sprung
> upper pivot, and is index compatible too..
> it also came in a long cage version. there's one on ebay right now,
> item no.
> 270207378104.
>
> http://ebay.com/<blah>
>
> i've never used any of these, so i can't say how well any work
>
> andrei padlowski
> glen ridge, NJ