SRAM X9 Medium Arm Sticking

foz666
foz666 Posts: 3
edited March 2011 in MTB workshop & tech
Hi everyone, As the subject states I have a SRAM X9 rear mech. When I shift to the biggest cog at the back sometimes the mech stays in this position when I shift up a gear (or sometimes 2 or 3 gears).

If I then hit a bump in the trail then it usually starts working again until I'm in that big cog again.

Does anyone know a fix for this?

Comments

  • The Rookie
    The Rookie Posts: 27,812
    Remove, clean it all out, lightly oil and try again.....

    If its only happening in the biggest gear then its possible there is something specific hapening, contact or due to the cable OUTER putting pressure on the mech (SRAM unlike shimano is very critical of the outer length due to the direct cable line)

    Simon
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.
  • cavegiant
    cavegiant Posts: 1,546
    A simple thing to check first, is disconnect the cable. Now move the mech with your hands. Is it sticky or smooth.

    If it is sticky a bit of plusgas will strip the gunk out, then rinse off and oil.

    I would put money on it being the cables though.
    Why would I care about 150g of bike weight, I just ate 400g of cookies while reading this?
  • foz666
    foz666 Posts: 3
    I tried thoroughly cleaning it and oiling it. This does not seem to work.

    Also the cable is slack. So I don't think it is the cable.

    Where can I get plusgas from?

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