You might find that the Simplex levers result in a longer-than-desired throw, especially if matched to a wider spaced cog. I have the retrofrictions matched to an NR front on a triple setup and the lever moves over 120 degrees to shift all three rings. Of course, this could "force" you to install one of those cool Simplex demultplicators...
Steve Barner, getting ready to go skiing in sunny Bolton, Vermont
> From: "Charles T. Young" <youngc@netreach.net>
> To: <classicrendezvous@bikelist.org>
> Subject: Re: [CR]Classic Derailleurs
> Date: Sun, 29 Dec 2002 21:46:02 -0500
>
> I have a Guerciotti mutt with a Campagnolo Nuovo Gran Sport shifting a
> Shimano 9-spd (!) cassette. Works fine and would be even better with
> something besides the NR downtube shifters that it currently sports. Will
> probably throw a set of Mavic/Simplex retrofriction levers on at some
point
> to improve things.
>
> Charlie
>
> Charles T. Young
> Honeybrook. PA