themaaslands@comcast.net wrote:
>
> Chuck wrote:
>
> > based on Campagnolo's catalogs the Cambio Corsa was always a four
> > speed derailleur (the later Paris-Roubaix was either a four or a five
> > speed derailleur depending on the spoke disc used).
>
> That is not quite right. The oldest Campagnolo drawings that I have seen of the Cambio Corsa all had either 2 cog or 3 cog freewheels. It likely wasn't until the second decade of life of the gear that most bikes using it were fitted out with 4 blocks. The dropouts are however not long enough to safely handle most five blocks. I have been told that this is why the Paris-Roubaix dropouts had 2 added teeth.
>
> --
> Steven Maasland
> Moorestown, NJ
Great info Steven. I stand corrected and am grateful for it!
Chuck Schmidt South Pasadena, Southern California
.