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QR spindle "issues"

  • 01-05-2014 12:29am
    #1
    alaimacerc
    Registered Users, Registered Users 2 Posts: 7,224 ✭✭✭


    OK, this is probably futile to diagnose over the interwebs, as compared to a quick and cheap replacement down my FNBS, but out of curiosity...

    My QR hub doesn't seem to be holding properly, and the back wheel persistently slides off to one side, pulled by the drive chain. Is this the sort of thing that can happen to the QR lever mechanism itself, such that it loses tightness? (Loose spring, worn cam, or some such?) Or is it more likely to be symptomatic of something else in the wheel, mounting backet, etc?


Comments

  • #2
    Cee-Jay-Cee
    Registered Users, Registered Users 2 Posts: 12,235 ✭✭✭✭Cee-Jay-Cee


    Impossible to say without knowing the entire history of the rear wheel/QR. Maybe it's just become worn over time and needs replacing. I would replace it immediately rather than try and diagnosing the cause and hope that it doesn't happen again.

    Does your rear wheel spin true when the QR is tight?


  • #3
    Smalltom
    Registered Users, Registered Users 2 Posts: 458 ✭✭Smalltom


    alaimacerc wrote: »
    OK, this is probably futile to diagnose over the interwebs, as compared to a quick and cheap replacement down my FNBS, but out of curiosity...

    My QR hub doesn't seem to be holding properly, and the back wheel persistently slides off to one side, pulled by the drive chain. Is this the sort of thing that can happen to the QR lever mechanism itself, such that it loses tightness? (Loose spring, worn cam, or some such?) Or is it more likely to be symptomatic of something else in the wheel, mounting backet, etc?

    In the visit nenagh classic this year I was flying (IMO) up the last climb when the rear wheel moved and started rubbing against frame. Got off re tightened it and set off again only for the same thing to happen. Race over. The skewer itself was a lovely light jobbie but I've since got two campag ones(nice and solid) and will never sacrifice a few grams again. My first port of call would be to change the skewer and get decent ones. I learned this the hard way in my local race!


  • #4
    doozerie
    Registered Users, Registered Users 2 Posts: 4,830 ✭✭✭doozerie


    Some possible causes that spring to mind:

    * Damaged skewer, as already mentioned. Replace the skewer.
    * The width between the axle end caps has changed (i.e. is narrower), but this could only have happened if someone worked on the axle and made a mistake like forgetting to re-install something like a washer. In this case the problem would recur with a new skewer.
    * The skewer handle is "stiff" and while you feel resistance while closing it and believe it to be because it is closing tightly on the frame, the resistance is all within the hinge mechanism and it's not actually closing tightly on the frame at all. Lubing the skewer handle mechanism, if you can, would sort this out.


  • #5
    alaimacerc
    Registered Users, Registered Users 2 Posts: 7,224 ✭✭✭alaimacerc


    Thanks to all for the very useful input, and double-thanks (morally speaking, at least!) to Doozerie, who I think has won the money with option #3. Removing the spindle and working the action close-up, it was pretty clear it was lacking lube, which I hadn't twigged at all while trying to fix it in-place. A few drops of oil down the lever's axle and it seems to have freed up a treat.

    Think I might have some other alignment issues back there, too, so I might yet have to feck it into the FNBS for a more thorough repair, but this is definitely a big step forward, conceptually and actually.


  • #6
    GTDolanator
    Registered Users, Registered Users 2 Posts: 772 ✭✭✭GTDolanator


    what frame have you got...what type of dropouts do you have?


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  • #7
    alaimacerc
    Registered Users, Registered Users 2 Posts: 7,224 ✭✭✭alaimacerc


    GTDolanator wrote: »
    what frame have you got...what type of dropouts do you have?

    Raleigh road bike type, and... I had to google that. Horizontal or "semi-horizontal", if I'm understanding what I'm seeing and reading right.


  • #8
    onthebikenow
    Registered Users, Registered Users 2 Posts: 11 ✭onthebikenow


    alaimacerc wrote: »
    Thanks to all for the very useful input, and double-thanks (morally speaking, at least!) to Doozerie, who I think has won the money with option #3. Removing the spindle and working the action close-up, it was pretty clear it was lacking lube, which I hadn't twigged at all while trying to fix it in-place. A few drops of oil down the lever's axle and it seems to have freed up a treat.

    Think I might have some other alignment issues back there, too, so I might yet have to feck it into the FNBS for a more thorough repair, but this is definitely a big step forward, conceptually and actually.

    Make sure that the two cone shaped springs point in towards the centre of the hub. Sometimes people have the narrow side facing outwards and the spring sits over the thread of the axle which stops the wheel aligning correctly.


  • #9
    alaimacerc
    Registered Users, Registered Users 2 Posts: 7,224 ✭✭✭alaimacerc


    onthebikenow wrote: »
    Make sure that the two cone shaped springs point in towards the centre of the hub. Sometimes people have the narrow side facing outwards and the spring sits over the thread of the axle which stops the wheel aligning correctly.

    Happily that's one of the (few) things that's not misaligned in my back wheel setup...


  • #10
    kumate_champ07
    Closed Accounts Posts: 7,150 ✭✭✭kumate_champ07


    replace with an allen key skewer, they hold tighter


  • #11
    dragratchet
    Registered Users, Registered Users 2 Posts: 690 ✭✭✭dragratchet


    random. exact same thing has been happening to me since i got my new bike and transferred my old wheelset onto it... when i get out of the saddle, the rear wheel immediately shifts to the point that its rubbing off the brakes and running close to one of the chain stays. thought it was due to making a change from alu to carbon and was getting stressed thinking my bike cant take my weight. gonna have a good read of the above suggestions, its been driving me nuts


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  • #12
    dragratchet
    Registered Users, Registered Users 2 Posts: 690 ✭✭✭dragratchet


    dragratchet wrote: »
    random. exact same thing has been happening to me since i got my new bike and transferred my old wheelset onto it... when i get out of the saddle, the rear wheel immediately shifts to the point that its rubbing off the brakes and running close to one of the chain stays. thought it was due to making a change from alu to carbon and was getting stressed thinking my bike cant take my weight. gonna have a good read of the above suggestions, its been driving me nuts

    update on this, a new skewer sorted out my problem


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