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  1. #1
    Living the Dream
    Join Date
    Feb 2004

    Shimano xtr 986 or xt 786 for 2x10 FD?

    I've seen threads on interference and having to file portions of the FD for 2x10. Is one FD recommended over the other. Bike will have xtr 26:38 cranks. It is 2011 dw sultan.

    "And I shout that your all fakes and you should have seen the look on your face"

  2. #2
    mtbr member
    Reputation: Clyde S Dale's Avatar
    Join Date
    Jan 2005
    I have XTR M980 cranks with the 986 FD on '12 Spot. I replaced the 26t with a 24t because I need the extra grunt on some climbs and the FD is spec'd for a 14t spread. In order to get good shifting I had to file quite a bit. Shimano's literature says to get the outside of the cage 1-3mm above the teeth of the big ring. At 3mm shifting was unreliable. I removed the FD and kept filing until I was at 1mm. This is now the best shifting bike I've ever had. Totally worth the effort.

  3. #3
    mtbr member
    Join Date
    Jul 2006
    Either one will need filing. Just chamfer the drive side of the clamp until you get close to shimano specs. I'm running the same set up on my spot although I don't think I got close to spec, mine is shifting fine

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