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greeg
greeg Posts: 41
edited June 2007 in MTB workshop & tech
Folks,
my chain was near snapping and i changed it along with the sprockets.However,for some reason the two don't seem to mesh together and the chain is jumping and skipping on top of the sprocket teeth.
I fitted another new chain to try and it is behaving in the same manner.The cable is also new.
Anyone have a clue as to what is happening?
Regards.

Comments

  • anto164
    anto164 Posts: 3,500
    when you say sprockets, do you mean the rear cassette?
    and did you get the correct chain for the amount of gears, i.e 9 speed cassettes need a 9 speed chain.

    What it could be is a problem with the mech not being aligned properly, allowing the chain to wander slightly, like ghost shifting.

    other than that, i'm goosed.

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  • greeg
    greeg Posts: 41
    I do mean rear cassette and it's 7 speed.
    Rear mech is a properly alligned new M761.
    What's ghost shifting?
  • mmm_pie
    mmm_pie Posts: 1,934
    What chain?

    not working :(
    <blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by haleybunny</i>

    Sometimes it overheats. You have to make sure it's in a ventilated place all the time.
    <hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">
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  • greeg
    greeg Posts: 41
    First one was some sort of generic chain and the seconmd is a KMC Z51.
  • ride_whenever
    ride_whenever Posts: 13,279
    So you put on a new seven speed chain, and cassette. Is it definately slipping at the back, and is the chain definately slipping on the cassette? Could it be the freehub not engaging and allowing the cassette to move in the wrong direction? Also how are the front rings, are they very worn, if so replace them. TBH you don't sound overly confident it might be an idea to take it into a local bike shop.

    Also M761 is what, deore xt rapidrise, isn't that a nine speed mech, if so might it be that the chain is getting jammed in your rear d‚railleur?

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  • joshleb
    joshleb Posts: 623
    Maybe you have bent the teeth somehow, that could cause it to skip,
    But if its doing it on all of the gears, its probably not that

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  • greeg
    greeg Posts: 41
    Folks,
    i bought a new cassette and all is now well.I intend to send the one that wouldn't mesh back to where i bought it.
    Thanks for the feedback.

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