Need Help Identifying Some Campy Stuff

[C40_guy]

Love the look of those brakes. Have one on the rear of my dedicated trainer bikette.

Rear derailleur looks a bit like the 2nd or 3rd gen C Record...

[Hindmost]

From Velobase:

"It should be noted that this Chorus model was the first real slant parallelogram rear derailleur made by Campagnolo (in the B mode). There has been some misinformation that the early Gran Sport Rally was a slant parallelogram, when it was actually a drop parallelogram (and would have violated the Suntour patent otherwise). The drop Rally was met with less than an enthusiastic response, with the complaint that it looked too much like a Japanese derailleur and was re-introduced as a standard in-line parallelogram until the 80's model that reverted back to a drop parallelogram). This Chorus was the second drop parallelogram after the Rally (if you don't consider the re-introduction of the drop parallelogram Rally in the 80's) and was pretty much the model for every 8 speed and later derailleur that came afterward."

[oldpotatoe]

Originally Posted by Hindmost

From Velobase:

"It should be noted that this Chorus model was the first real slant parallelogram rear derailleur made by Campagnolo (in the B mode). There has been some misinformation that the early Gran Sport Rally was a slant parallelogram, when it was actually a drop parallelogram (and would have violated the Suntour patent otherwise). The drop Rally was met with less than an enthusiastic response, with the complaint that it looked too much like a Japanese derailleur and was re-introduced as a standard in-line parallelogram until the 80's model that reverted back to a drop parallelogram). This Chorus was the second drop parallelogram after the Rally (if you don't consider the re-introduction of the drop parallelogram Rally in the 80's) and was pretty much the model for every 8 speed and later derailleur that came afterward."

BUT the A-B Chorus downfall was there was no spring in the 'top to frame' mount..so nothing to force it forward BUT a mid cage rear version also(also CDA).

Campagnolo, with their various shifter inserts, their beautiful CDA rear der..

I think a lot of the lament for initial Campagnolo indexing systems is they weren't 'matched' properly..proper insert for the speed/freewheel/chain used. And like those who didn't understand ERGO, or knowing that small bits in the lever can break..well, the LBS hacks labeled it 'finicky' or 'doesn't work'..but lotsa hacks out there wrenching on bikes. Even today

[merckx]

Originally Posted by oldpotatoe

BUT the A-B Chorus downfall was there was no spring in the 'top to frame' mount..so nothing to force it forward BUT a mid cage rear version also(also CDA).

Campagnolo, with their various shifter inserts, their beautiful CDA rear der..

I think a lot of the lament for initial Campagnolo indexing systems is they weren't 'matched' properly..proper insert for the speed/freewheel/chain used. And like those who didn't understand ERGO, or knowing that small bits in the lever can break..well, the LBS hacks labeled it 'finicky' or 'doesn't work'..but lotsa hacks out there wrenching on bikes. Even today

I agree, Old Potato, it was a brilliant design.