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  1. #1
    kabouterclan member
    Join Date
    Jun 2006

    Bad shifting RD on '12 Rumblefish

    Hi there,

    Rear shifting on my '12 RF has been unacceptible from the start.

    Precision is okay, but the resistance in the cabling is just crap.

    The problem seems to be in the last piece of outer cabling, running through the chain stay.

    Anybody have the same problem, anybody found a solution?

    My RF is full-XTR with shadow+ Rd and XTR cabling. Derailleur adjustments and B-tension are okay.
    Haven't changed the last piece of outer cabling yet.

    Help much appreciated.
    Last edited by de lars cuevas; 05-08-2013 at 05:45 AM.
    Sent from my HAL 9000

  2. #2
    I hate that name.
    Reputation: blunderbuss's Avatar
    Join Date
    Jan 2004
    Have you tried running a new cable? Just the cable, not the housing. The cable could have gotten kinked on the install, which would account for it being bad from the start. Or by resistance do you mean a harder push is required on the downshift? Do you ride with the derailleur clutch on or off? The + derailleurs I've worked on had much more resistance on than off.
    Worked at Trek/Fisher dealer 2008-2013. Only a little biased.

  3. #3
    kabouterclan member
    Join Date
    Jun 2006
    Hi, the inner cable is fine (i changed it allready). I allways ride with the clutch on, and i'm aware of the extra down shift resistance caused by the clutch.

    I think it must be the cable routing, depending on the position of the derailleur. Downshifts in the middle-ish sprockets have much more resistance than shift on both outer edges.
    Sent from my HAL 9000

  4. #4
    MTB B'dos
    Reputation: LyNx's Avatar
    Join Date
    Oct 2004
    UNless you have a completely differently designed RF, the cable runs through the CHAINstay. Simple solution to see if it's the routing is to not run it through there and just run it all externally and see if shifting improves. If it does, then you can either just keep it all external or try to figure out what's going on from there. Another thing to check would be hanger alignment, could be off and cause exactly the shifting issues you're talking about - if there's one thing I've learned is to not trust that because a bike is new, that the hanger is straight.
    One day your life will flash before your eyes, will it be worth watching??

  5. #5
    kabouterclan member
    Join Date
    Jun 2006
    Thanks again.
    Hanger is straight, I might try the rerouting.
    Sent from my HAL 9000

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