Aldo Ross wrote:
> On the cambio Paris-Roubaix the adjustment is much more
> critical - if the qr lever engages too soon the indexing
> mechanism can't provide any chain slack, and the shifting
> mechanism can be affected. And just like with the cambio
> Corsa, if it's too loose, the qr can't hold the wheel in
> place.
>
> The adjustability of the frankenstein bolts was (and still
> is) convenient when using these shifters.
Great post Aldo, luv the movies of you shifting... one small point, I believe the 1949 single lever (called the Paris-Roubaix after April 1950)) came with oval-ring on the cone shaped adjusting nut, not the frankenstein bolts. Does anyone know for sure what style adjusting nut originally came on the Paris-Roubaix derailleur?
Chuck Schmidt
South Pasadena, CA USA
http://www.velo-retro.com (reprints, t-shirts & timelines)