Cycling Equipment · Public discussion

play in XT cassette

Started by Francesco Devittori · · Last activity · 5 posts · 433 views

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Cycling Equipment
Published
16 July 2006
Last activity
17 July 2006
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Francesco Devittori
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  1. Hi all,
    I got a problem with a brand new Shimano XT 11-34 9s cassette.
    I installed it on a Mavic hub (about '99 vintage) and there is quite a
    bit of play ("float"😉. The play is not lateral (like a missing spacer),
    but instead it's like the freehub body splines are smaller than the
    cassette grooves.
    The problem is *exactly* as the one described in this old thread:
    http://groups.google.com/group/rec.bicycles.tech/browse_thread/thread/a72e0aecfe966ecb/3adbfa906198f716?lnk=st&q=xt+cassette+play&rnum=4#3adbfa906198f716

    I don't think this is normal, I never seen this in any road wheel and
    my girlfriend's mtb with XT hub and cassette also does not have this
    problem.
    I tried the same cassette on another Mavic (crossmax) wheel also from
    about '99 or 2000, with a very similar hub and the problem is the same.
    Same thing happens with a dura-ace 7700 hub.

    It's very annoying because it makes a loud noise while pedaling. Is
    there any solution? Is this a common problem?

    Thanks,
    Francesco

  2. Francesco Devittori said:

    Hi all,
    I got a problem with a brand new Shimano XT 11-34 9s cassette.
    I installed it on a Mavic hub (about '99 vintage) and there is quite a
    bit of play ("float"😉. The play is not lateral (like a missing
    spacer),

    You're missing a spacer.

    Quoted message said:

    but instead it's like the freehub body splines are smaller
    than the cassette grooves.
    The problem is *exactly* as the one described in this old thread:
    http://groups.google.com/group/rec.bicycles.tech/browse_thread/thread/a72e0aecfe966ecb/3adbfa906198f716?lnk=st&q=xt+cassette+play&rnum=4#3adbfa906198f716

    I don't think this is normal, I never seen this in any road wheel and
    my girlfriend's mtb with XT hub and cassette also does not have this
    problem.

    That's because Mavic freehubs (road and MTB) come with a thin, about 1mm
    spacer on them already, even for 9-sp drivetrains.

    Quoted message said:

    I tried the same cassette on another Mavic (crossmax) wheel also from
    about '99 or 2000, with a very similar hub and the problem is the
    same. Same thing happens with a dura-ace 7700 hub.

    It's very annoying because it makes a loud noise while pedaling. Is
    there any solution? Is this a common problem?

    The solution is to obtain thin cassette spacers (1mm and thinner). Once you
    have this in place, when you tighten down the lockring, it will tighten all
    the cogs against each other, and the play, clunking, etc. will go away.

    --
    Phil Lee, Squid

  3. Phil Lee said:
    Francesco Devittori said:

    Hi all,
    I got a problem with a brand new Shimano XT 11-34 9s cassette.
    I installed it on a Mavic hub (about '99 vintage) and there is quite a
    bit of play ("float"😉. The play is not lateral (like a missing
    spacer),

    You're missing a spacer.

    Quoted message said:

    but instead it's like the freehub body splines are smaller
    than the cassette grooves.
    The problem is *exactly* as the one described in this old thread:
    http://groups.google.com/group/rec.bicycles.tech/browse_thread/thread/a72e0aecfe966ecb/3adbfa906198f716?lnk=st&q=xt+cassette+play&rnum=4#3adbfa906198f716

    I don't think this is normal, I never seen this in any road wheel and
    my girlfriend's mtb with XT hub and cassette also does not have this
    problem.

    That's because Mavic freehubs (road and MTB) come with a thin, about 1mm
    spacer on them already, even for 9-sp drivetrains.

    Quoted message said:

    I tried the same cassette on another Mavic (crossmax) wheel also from
    about '99 or 2000, with a very similar hub and the problem is the
    same. Same thing happens with a dura-ace 7700 hub.

    It's very annoying because it makes a loud noise while pedaling. Is
    there any solution? Is this a common problem?

    The solution is to obtain thin cassette spacers (1mm and thinner). Once you
    have this in place, when you tighten down the lockring, it will tighten all
    the cogs against each other, and the play, clunking, etc. will go away.

    --
    Phil Lee, Squid

    Thanks, I will try with a 1 mm spacer. Weird that even without the thin
    spacer the lockring is able to tighten the cassette (no lateral play at
    all).
    I just don't understand why they make the splines so much smaller than
    the grooves on the cassette.
    Extra tightening of the lockring will keep the cogs in place for a
    while (squishing them together), but the cassette will probably be a
    bit off-center... Am I missing something?

  4. Francesco Devittori said:
    Phil Lee said:
    Francesco Devittori said:

    Hi all,
    I got a problem with a brand new Shimano XT 11-34 9s cassette.
    I installed it on a Mavic hub (about '99 vintage) and there is quite a
    bit of play ("float"😉. The play is not lateral (like a missing
    spacer),

    You're missing a spacer.

    Quoted message said:

    but instead it's like the freehub body splines are smaller
    than the cassette grooves.
    The problem is *exactly* as the one described in this old thread:
    http://groups.google.com/group/rec.bicycles.tech/browse_thread/thread/a72e0aecfe966ecb/3adbfa906198f716?lnk=st&q=xt+cassette+play&rnum=4#3adbfa906198f716

    I don't think this is normal, I never seen this in any road wheel and
    my girlfriend's mtb with XT hub and cassette also does not have this
    problem.

    That's because Mavic freehubs (road and MTB) come with a thin, about 1mm
    spacer on them already, even for 9-sp drivetrains.

    Quoted message said:

    I tried the same cassette on another Mavic (crossmax) wheel also from
    about '99 or 2000, with a very similar hub and the problem is the
    same. Same thing happens with a dura-ace 7700 hub.

    It's very annoying because it makes a loud noise while pedaling. Is
    there any solution? Is this a common problem?

    The solution is to obtain thin cassette spacers (1mm and thinner). Once you
    have this in place, when you tighten down the lockring, it will tighten all
    the cogs against each other, and the play, clunking, etc. will go away.

    --
    Phil Lee, Squid

    Thanks, I will try with a 1 mm spacer. Weird that even without the thin
    spacer the lockring is able to tighten the cassette (no lateral play at
    all).

    The play's taken up, but that's different from "tight."

    Quoted message said:

    I just don't understand why they make the splines so much smaller than
    the grooves on the cassette.

    Disassembly, manufacturing tolerance. It'd really stink to not be able to remove
    the cassette after the inevitable deformation of the freehub body.

    Quoted message said:

    Extra tightening of the lockring will keep the cogs in place for a
    while (squishing them together), but the cassette will probably be a
    bit off-center... Am I missing something?

    Look at how off-center the old freewheels were and we never felt it while
    riding. This would be off by only a tiny fraction of that.

    Ron

  5. Francesco Devittori said:
    Phil Lee said:
    Francesco Devittori said:

    Hi all,
    I got a problem with a brand new Shimano XT 11-34 9s cassette.
    I installed it on a Mavic hub (about '99 vintage) and there is
    quite a bit of play ("float"😉. The play is not lateral (like a
    missing spacer),

    You're missing a spacer.

    Quoted message said:

    but instead it's like the freehub body splines are smaller
    than the cassette grooves.
    The problem is *exactly* as the one described in this old thread:
    http://groups.google.com/group/rec.bicycles.tech/browse_thread/thread/a72e0aecfe966ecb/3adbfa906198f716?lnk=st&q=xt+cassette+play&rnum=4#3adbfa906198f716

    I don't think this is normal, I never seen this in any road wheel
    and my girlfriend's mtb with XT hub and cassette also does not have
    this problem.

    That's because Mavic freehubs (road and MTB) come with a thin, about
    1mm spacer on them already, even for 9-sp drivetrains.

    Quoted message said:

    I tried the same cassette on another Mavic (crossmax) wheel also
    from about '99 or 2000, with a very similar hub and the problem is
    the same. Same thing happens with a dura-ace 7700 hub.

    It's very annoying because it makes a loud noise while pedaling. Is
    there any solution? Is this a common problem?

    The solution is to obtain thin cassette spacers (1mm and thinner).
    Once you have this in place, when you tighten down the lockring, it
    will tighten all the cogs against each other, and the play,
    clunking, etc. will go away.

    --
    Phil Lee, Squid

    Thanks, I will try with a 1 mm spacer. Weird that even without the
    thin spacer the lockring is able to tighten the cassette (no lateral
    play at all).

    You're bottoming out the lockring on the threads of the freehub body. The
    cassette is likely not tight, as it would be impossible to loosen given the
    notched/indexed lockring and 11 or 12-tooth cog.

    Quoted message said:

    I just don't understand why they make the splines so much smaller than
    the grooves on the cassette.

    It saves weight. Blame Mavic for being stupid. The one spline is smaller
    than the rest... that's all that matters. The back sides of the wider
    splines don't serve any functional purpose on a freewheeling wheel. Now if
    you were a Sheldon-weld-it-so-it's-now-a-fixed-gear-wheel maniac, then you'd
    see a problem.

    Quoted message said:

    Extra tightening of the lockring will keep the cogs in place for a
    while (squishing them together), but the cassette will probably be a
    bit off-center... Am I missing something?

    Nope... it'll be off-center in that you may have to adjust your cable
    tension and readjust your limits, but it will keep tight. Google up Mavic
    spacer crossmax... you'll see lots of references to what I'm talking about.

    --
    Phil Lee, Squid

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