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  1. #1
    RoadBikeReview Member
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    Campy rear der. adj.

    I had a serious issue with an "03 record long cage der. used with an FSA triple crank. After approx. 8000 mi. and immed.after installing the 3rd chain, I noticed that in the small crank ring (and any rear cog) there was considerable pull on the der. cage and the chain would run up the inside the small chain ring.......this would over-extend the rear der. as the chain doubled up and tried to track up the backside of the ring.....causing a seizing of the drivetrain. (small ring worn?)
    It was as if there was pull from the small chainring that made the cage "hop" forward until this seizing occured.
    I installed a Centaur long cage derailleur last night and the seizing problem disappeared, but I am having problems getting the shifting adjusted correctly.......I wonder if the two problems are related.
    I cannot seem to get the Centaur der. to adjust correctly......It will adjust for one ring and then the cable tension will seem wrong for the other rings (i.e. being in-between cogs noise)
    Q's: 1)hanger alignment?
    2)adj. screw located under cage pivot?
    notes: RR DRR cable runs straight & correctly onto fastening bolt, housing L correct.
    tried old & new cassette, old & new chain
    Thanks for any ideas!

  2. #2
    RoadBikeReview Member
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    chain suck..

    Sounds like chain suck. Usually a worn little ring is the cause. A new little ring may be in order. FSA's are cheap. http://aebike.com/site/page.cfm?Page...and=149&type=T

    http://fagan.co.za/Bikes/Csuck/

  3. #3
    RoadBikeReview Member
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    Thanks alot C-40!

    Quote Originally Posted by C-40
    Sounds like chain suck. Usually a worn little ring is the cause. A new little ring may be in order. FSA's are cheap. http://aebike.com/site/page.cfm?Page...and=149&type=T

    http://fagan.co.za/Bikes/Csuck/
    Chain suck is the symptom for sure! I went on another test ride and the new rear DRR was now doing the same thing. I could see the chain being "sucked" up the back of the ring in my shadow while riding.....I will get a new ring; this one has had alot of use.
    The link re: chain suck is excellent; my situation has all the variables: a worn, aluminum, low tooth count granny ring (28t), with a new chain.
    Last edited by twelvepercent; 10-30-2005 at 02:36 PM. Reason: addendum

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