Campagnolo Nuovo Record Rear Derailleur
08-19-09, 03:33 PM
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Campagnolo Nuovo Record Rear Derailleur
A question for those who know Campagnolo. Consider a correctly attached Nuovo or Super Record rear Derailleur. Is the derailleur supposed to swing freely at the dropout hanger or is it supposed to be held tightly in a stationary fixed position? Thanks!
08-19-09, 03:47 PM
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Should be halfway in between. It need not pivot for general operation (though it should pivot rearwards so one can remove a wheel easily), but depending on the dropout, it might hang or not. Usually somewhere in between - loose, but it'll bind a bit in spots (and it's sometimes due to rough spots in the pivot bolt machining rather then the dropout).
-Kurt
-Kurt
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08-19-09, 04:20 PM
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I have limited experience, but I think it should be loose enough to rotate freely, but tight enough that there is no lateral movement between the derailleur and the dropout at the pivot.
08-19-09, 04:49 PM
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The mounting bolt should bottom out and tighten without clamping down on the upper derailleur pivot body (the mounting bolt has a shoulder that limits it's mounting depth into the dropout hanger). that it impedes it's swing to clear the skewer and axle when you are removing the rear wheel from the bike.....there!
At least that's how it has worked on my bike with my own NR RD.
Chombi
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At least that's how it has worked on my bike with my own NR RD.
Chombi
84 Peugeot PSV
08-19-09, 06:01 PM
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Thanks everyone. I assume that the spring between the pulley cage & derailleur body is what holds the derailleur in the best position.
08-19-09, 06:47 PM
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The first Campagnolo derailer with a dynamic top pulley (i.e., sprung), to my knowledge, was first-gen Rally. The feature wasn't repeated until first-gen C-Record, which had such a penchant for cracking that all-important part that the design was quickly revised to a fixed B-tension screw.
-Kurt
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