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  1. #1
    Senior Member embankmentlb's Avatar
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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!

  2. #2
    www.theheadbadge.com cudak888's Avatar
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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

  3. #3
    Senior Member ozneddy's Avatar
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    Swing freely !
    The older I get,the better I was !

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    Senior Member ozneddy's Avatar
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    But firmly !
    The older I get,the better I was !

  5. #5
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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.

  6. #6
    Senior Member Chombi's Avatar
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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.

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  7. #7
    Senior Member embankmentlb's Avatar
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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.

  8. #8
    www.theheadbadge.com cudak888's Avatar
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    Quote Originally Posted by embankmentlb View Post
    Thanks everyone. I assume that the spring between the pulley cage & derailleur body is what holds the derailleur in the best position.
    The chain does the job of holding both NR and SR's in a forward-angled position - the cast-in top stop prevents them from pivoting too far forward. There's pretty much no compromise at the angle they sit at - the chain pulls them as far forward as the top limit stop allows, and that's it.

    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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