Re: [CR]Comparison Campy Valentino and Gran Sport F der.

Steven Maasland wrote:
>
> Mark wrote in response to a post stating:
>
> > > And another question, about Campy Gran Sport front
> > > deraillers, some of the cages have the fixing bolt on the
> > > front, some have them on the top, and some also have a
> > > threaded hole on the back. What is that about?
>
> > I don't think that's right, I think Gran Sports only had the bolt on top.
> > The similar-looking Valentino had the bolt in front, usually I think with
> > the hole drilled on through so it is visible in back as well.
> >
> > I welcome corrections, if there was a true Gran Sport with bolt in front!
> >
> > Some amateurish snapshots I took illustrate the differences:
> > http://bulgier.net/pics/bike/Campy/Valentino'n'GranSport_F_Ders_F_view.jpg
> >
> http://bulgier.net/pics/bike/Campy/Valentino'n'GranSport_F_Ders_rear_view.jp
> > g
> >
> http://bulgier.net/pics/bike/Campy/Valentino'n'GranSport_F_Ders_side_view.jp
> > g
>
> I have looked at the photos and the derailleurs that I have at home and I
> believe that the difference between the Valentino and the Gran Sport front
> derailleurs can be summarized as follows:
>
> The Gran Sport (GS) has a top-fixed derailleur cage instead of front-fix of
> the Valentino. The cage of GS is screwed together in the back, whereas the
> Valntino is riveted. The Campagnolo haut-relief name on the rear of the
> derailleur is much heavier and cleanly printed on the GS. The chrome plating
> on the GS front plate, cage and front-plate fixation screws seems to be
> heavier and shinier than that used on the Valentino. The arm where the cable
> fixation nut seems to be somewhat lower on the GS than the Valentino and
> lastly, the cable fixation system on the GS uses a perforated screw and bolt
> system whereas the Valentino uses a threaded arm with cable clamp

The quickest and easiest thing to spot on the Valentino (a later, lower-priced derailleur) is the cast-on boss on the body of the derailleur where the rod exits, and the cage fixing screw on the front (instead of the top).

Note: the cages and rods aren't interchangeable between the Gran Sport (intro'd 1951)and the Valentino (intro'd 1964?).

Chuck Schmidt SoPas, SoCal - 70s, sunny, very clear T-day http://www.velo-retro.com (Campagnolo Timeline, t-shirts and reprints)

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