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Campy Super Record Cage on Nuovo Record RD

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Campy Super Record Cage on Nuovo Record RD

Old 03-07-16, 11:53 PM
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Campy Super Record Cage on Nuovo Record RD

I could not find the original post, so I will start with a new post. I removed the cage plates from a Campy SR RD and installed in on a NR RD. One issue I am having is the chain rubs against the top cage plate when I shift. Is this due to some part of the modification I did or an adjustment issue. I have a 5 spd freewheel and the chain is actually original to the bike. Thanks........
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Old 03-08-16, 07:43 AM
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Is the SR cage from a newer 7-speed or more derailleur? If so the spacing may be narrower than you old 5-speed NR derailleur as it was intended for a narrower chain. Your 5-speed chain may be too wide to clear.

Last edited by HillRider; 03-08-16 at 10:58 AM.
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Old 03-08-16, 08:36 AM
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I just set up a NR der on a 1970s Colnago I'm building up for a customer. When he dropped off the bike the rear der was mounted. The inner cage plate was on upside down. The inner plate is shaped to surround the chain all the way around the tension pulley and only partially around the guide pulley. The plate was surrounding the upper pulley completely and the chain could rub on this inner plate end when shifting.

Back in the day when riders did more of their own work cleaning and such I saw this mistake at least a few times a year. Either on bikes brought in for service of on club rides. Andy.
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Old 03-08-16, 10:40 AM
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Old ones the SR top pulley was relocated rearward and closer to the Pivot .. capacity went from 26 to 28 T.

they climbed the Pyrenees and Alps with 42 : 28 gears..
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Old 03-08-16, 10:44 AM
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Originally Posted by fietsbob
Old ones the SR top pulley was relocated rearward and closer to the Pivot .. capacity went from 26 to 28 T.

they climbed the Pyrenees and Alps with 42 : 28 gears..
Lesser mortals may require a bit more gearing, ; hence the need for a long cage NR RD.
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Old 03-08-16, 10:51 AM
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As noted above, make sure the inner plate isn't upside down.

Otherwise it might be an alignment problem. If the hanger isn't aligned, the orientation of the cage vis a vis the angle of the chain will be off, and that can cause rubbing in some combinations.

BTW - this should give you comfort. The NT and SR cages are the same dimensionaly. So unless you mounted it wrong in some way that should be obvious if you look, it should fit and work right.
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Old 03-08-16, 10:53 AM
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It was the Rally that added the long cage .. now there are replicas sold Soma/Merry sales Imports got them made..

I still have the <C> Rally RD I got in the 70s ..
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Old 03-08-16, 12:07 PM
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Originally Posted by FBinNY
As noted above, make sure the inner plate isn't upside down.

Otherwise it might be an alignment problem. If the hanger isn't aligned, the orientation of the cage vis a vis the angle of the chain will be off, and that can cause rubbing in some combinations.

BTW - this should give you comfort. The NT and SR cages are the same dimensionaly. So unless you mounted it wrong in some way that should be obvious if you look, it should fit and work right.
Plate is not upside down. Not the chain either. What does " BTW-this should give you comfort." What does that mean?
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Old 03-08-16, 12:09 PM
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Originally Posted by vintagerando
Plate is not upside down. Not the chain either. What does " BTW-this should give you comfort." What does that mean?
It means what the following sentence implied. I thought you'd be reassured knowing that the cage assembly is compatible and the problem should be solvable.

As far as the rubbing goes, we'd need good photos or a very clear description of exactly what's happening to give you a more specific answer.
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