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  1. #1
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    chain mounting next chain ring, front derailleur not touching, chain line messed up?

    What else could it be? bb needs a spacer?

    awhile ago chain ring, cranks, and bb were replaced with lesser components than original (campy > truvative).
    rear cassette and derailleur still campy.
    Bike rode fine
    but got in a crash, now rear derailleur arm may be bent. I am getting the problem in the title
    maybe something else got mis-aligned? I don't see how the slightly bent arm could cause the chain to hop up (at the front top chainring location). It is fed directly from the cassette.

    Thanks

  2. #2
    Senior Member
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    "now rear derailleur arm may be bent."

    Get that straightened out first. Fix what you know is wrong before you troubleshoot further.

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