These could be used for adding a front derailleur to a bike equipped with Cambio Corsa or Cambio Paris-Roubaix rear mech, or for adding a front derailleur to a bike which originally only had a braze-on mount for the rear derailleur shift lever (as seen on many city bikes). Could also be used to replace a damaged left braze-on mount... Huret even made one which straddled the right hand braze-on to keep the levers in-line with on-another.
Middletown, Ohio, USA
> How old is the shifter? If early Ergo generation, you often saw the left
> hand down tube shifter on Pro's bike to save weight for big mountain
> climbs. The theory being that the down tube?shifter and a brake lever
> combined?was lighter than the ergo shifter. Was not considered as a
> disadvantage since on a long climb the rider is, again theoretically, not
> shifting as much.?If an older generation shifter, can only think that
> perhaps?the use of a bar con for the rear and again the down tube for the
> front. ?Anyone else have any ideas??
> Rex Gilmore
> Vienna, VA
> -----Original Message-----
> From: Rob Williams <email@example.com>
> To: firstname.lastname@example.org
> Sent: Sun, 15 Mar 2009 11:53 pm
> Subject: [CR] Left handed downtube shifter
> Looking to build up a five speed I purchased, unseen, a single sided
> down tube shifter; Only to find that this Campy shifter is made
> for the left side of the downtube. What would this be for?
> Rob Williams
> Seattle USA