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Cassette movement

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  • October 23, 2014 at 8:50 pm #22628
    stephen1986

    Hi,

    Just bought my first road bike today and noticed the cassette moving side to side when the wheel is running freely. Please see attached video.

    It doesn’t look normal to me, so I thought I’d check with more experienced folk.

    Cheers

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Viewing 13 replies - 1 through 13 (of 13 total)
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  • October 29, 2014 at 3:10 pm #818827
    0
    bigmel

    Cassette body isn’t aligned
    Cassette body isn’t aligned with the axle correctly – either came that way or the body is loose.

    October 26, 2014 at 7:02 pm #818825
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    SamR

    I had the same problem when I
    I had the same problem when I bought a pair of new wheels, as the spacer behind the cassette was being moved out by some rivets which held the cluster together. My spacer had cutouts to accomodate the rivets, but they weren’t aligned with the rivets, therefore the assembly was wobbling slightly, as seen in your video.

    Edit: sorry, I was wrong. My problem was when the cassette was spinning, and not when it was stationary. The problem you’re seeing here might be down to poor tolerances within the hub. Anyway, your LBS should be able to sort this.

    October 26, 2014 at 4:42 pm #818823
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    urbane

    A missing spacer or worn hub
    A missing spacer or worn hub bearings/freewheel will cause cassette play; however it should not occur otherwise and that video looks like a duff freewheel!

    A freewheel can be damaged by not using a chain whip to oppose torque wrench force to lock a cassette to the freewheel; however the design of chain whips seems crap because there is nothing to hold the free chain end tight to the cassette, so I fixed a bit of gear cable to mine.

    October 26, 2014 at 11:44 am #818821
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    FMOAB

    wellcoordinated wrote:Come

    wellcoordinated wrote:
    Come one guys have you checked yours recently? Every free hub does this to some degree. It’s perfectly normal.

    Really! I just checked three bikes, there was no discernible movement of the cassette when cranked up to speed. My guess is that the original poster is either missing a spacer or that a larger spacer is required.

    October 26, 2014 at 8:06 am #818819
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    Flying Scot

    My freewheels do a bit of
    My freewheels do a bit of that,especially the cheap ones, but my free hubs don’t.

    October 25, 2014 at 11:54 am #818817
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    matthewn5

    You’re right @IHPhoto, sorry.
    You’re right @IHPhoto, sorry.

    And @wellcoordinated sure, but not that much usually.

    October 25, 2014 at 7:52 am #818815
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    wellcoordinated

    Come one guys have you
    Come one guys have you checked yours recently? Every free hub does this to some degree. It’s perfectly normal.

    October 24, 2014 at 11:56 pm #818813
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    IHphoto

    It cn’t be a bent axle as the
    It cn’t be a bent axle as the axle is held stationary. Either the cassette is not fixed in position or the freehub has a major bearing issue – often the outer one(s). I have had the latter develop and it often means a new freehub or at the very least new bearing/adjustment if they are of the free type. Most these days use sealed industrial types.

    October 24, 2014 at 10:49 pm #818811
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    matthewn5

    That does look as if the axle
    That does look as if the axle is bent, have seen that elsewhere.

    Otherwise the cassette lock ring is loose or the bearings aren’t adjusted properly or something. Take it to LBS and if not satisfied with the explanation take it somewhere else for a second opinion.

    October 24, 2014 at 7:27 am #818809
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    mobydick64

    Its worth checking, if you
    Its worth checking, if you have the tools that is, that the cassette is properly seated on the free hub. Sometimes it can jag, but not usual with a new free hub body. Hard to tell with your video whats happening. Note that the teeth on each cog do lean left right, which is intentional as it helps the chain grab when shifting between cogs.

    October 23, 2014 at 9:53 pm #818807
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    stephen1986

    thanks for commenting- not
    thanks for commenting- not Evans – Decided to support the LBS on this occasion…

    October 23, 2014 at 9:46 pm #818805
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    Colin Peyresourde

    Likely you’re missing a
    Likely you’re missing a spacer or the lock ring is not tight. Just take it back to your retailer (Evans at a guess – Trek bike n’all)
    And they should sort it.

    October 23, 2014 at 9:07 pm #818803
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    Flying Scot

    It’s worth checking that:
    1)
    It’s worth checking that:

    1) cassette lockring is tight
    2) more likely….the freehub needs adjusted.

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