Rear wheel pulling out of dropouts

  • Creator
    Topic
  • #20490
    Jack Osbourne snr

    Dear Learned Friends,

    Any sage advice welcome to help solve an annoying issue…

    On and off, for about two years, I have found myself pulling my back wheel out of the dropouts when climbing out of the saddle. I’m getting very fed up having to stop and reset my wheel on hills.

    Wheel pulls out of drive side dropout and wedges on non drive seatstay
    Frame and dropouts are titanium
    Wheels are Prolite Bracciano

    I’ve tried a few things, but nothing seems to work consistently:

    Changed stock open cam skewers to closed cam levers.
    Added serrated washer to drive side
    Experimented with monster clamping force and different lever positions

    Any ideas how to stop this? Would roughing up the dropout surfaces help? If so what with and by how much?

Viewing 15 replies - 1 through 15 (of 37 total)
  • Author
    Replies
  • #768717
    0
    tyceman

    Thanks for the comments
    Thanks for the comments guys.

    I’ll give the sand paper washers a go this weekend, and get the frame looked at by Van Nicholas when the factory re-opens in August. My last Van Nic Euros did exactly the same thing, so i’m inclined to think the geometry is OK.

    There a loads of posts of the same issue with titanium frames, but the problem is almost always solved by using high end skewers, assuming axle clearances etc are ok. Maybe my relatively high weight (94kg) and the fact my frame doesn’t have any serrations on the dropouts though means there still isn’t enough friction.

    If this is the case, and Van Nic say the geometry is OK, I have no idea what they’ll say, as a replacement frame will probably do the same.

    #768715
    0
    Anonymous

    lookmanohands wrote:Does the

    lookmanohands wrote:
    Does the wheel sit snuggly in the dropout? From the picture the dropout looks very open, more than the axle diameter 10mm?

    I agree, it looks like the dropout proportions are off, like it’s wider than a 10mm axle. Through my cloudy Internet crystal ball, it looks like a frame flaw.

    #768713
    0
    CXR94Di2

    I would make a washer out of
    I would make a washer out of 180/220 grit body work sand paper. Fold a small piece to make it two sided, apply a little glue to stick paper together, make hole for skewer shaft, that should hold it

    #768711
    0
    tyceman

    Hi again,
    The slipping wheel

    Hi again,

    The slipping wheel problem is still haunting me!

    I have since purchased Crank Bros split lever skewers, Shimano Ultegra skewers and DT Swiss RWS skewers, all of which have been recommended to me by bike shops or forum members for having high clamping force. None of them have worked.

    I have also been in contact with Van Nicholas who have asked me to send the bike back to them, but unfortunately they are about to enter a 1 month long factory shut-down. So little point sending it until August.

    I daredn’t try any potential fixes involving roughing up the dropouts in case Van Nic say I have voided the warranty. So, back to trying other low tech solutions until August. Will try to find some serrated washers next.

    Any more suggestions are welcome!

    Thanks

    #768709
    0
    wellcoordinated

    I van two Van Nic Ti bikes –
    I van two Van Nic Ti bikes – no knurled surfaces – never had this problem using Mavic QR skewers.

    #768707
    0
    wellcoordinated

    I van two Van Nic Ti bikes –
    I van two Van Nic Ti bikes – no knurled surfaces – never had this problem using Mavic QR skewers.

    #768705
    0
    CXR94Di2

    I am surprised that the frame
    I am surprised that the frame builder didn’t have the surface knurled in the drop outs. My bike has knurled surfaces.

    #768703
    0
    Jack Osbourne snr

    I may have solved it, but due
    I may have solved it, but due to a crash in March (on another bike), I’ve not tested it as much as I would like.

    Basically, I did three very simple things:

    1. Clinical clean of all dropout/ hub and QR surfaces – I used isopropyl alcohol
    2. Light lube of QR cam
    3. Insertion of small “washer” of sandpaper between dropout and QR faces – with the grit contacting the dropout faces.

    I’ve covered the spot that usually triggered it a few times with no issue, so I may have nailed it at the first (fortieth) attempt, but I’ve not been riding as hard as normally. I’m not 100% convinced yet.

    The crash minced my memory, so apologies for not posting progress as promised… Oh… And yes, I was wearing a helmet.

    #768701
    0
    tyceman

    Hi Alez,
    Did you ever solve

    Hi Alez,

    Did you ever solve your problem? I’m being plagued by the very same thing on my titanium bike. I’ve tried one other skewer, and also tried rough up the drop out surface but to no avail.

    Any advice you can give would be much appreciated!

    #768699
    0
    glynr36

    Any gripping/friction paste
    Any gripping/friction paste won’t do a think in that situation.
    It’s the QR isn’t clamping hard enough, on Ti frames thats down to the use of 6/4 grade ti. Can either experiment with QRs to solve it or could see a serrated washer on the QR between the ends and dropout, dressing the face out the dropout with a centre punch too (though good look finding one that’ll do 6/4 ti easily) to give the washer a bit more to bit onto.

    #768697
    0
    pauldmorgan

    I had this happen to me once
    I had this happen to me once with a Ti frame and Pro-Lite skewers. I figured I hadn’t properly tightened it and it didn’t happen again.

    Sheldon Brown has a lot to say about skewers: he says that internal cam ones are better for clamping force and security than the more modern “weight saving” external cam types. Likewise steel axles are better (less stretchy) than aluminium or titanium.

    Maybe try a traditional Shimano or Campag skewer and see if that helps.

    Good luck.

    #768695
    0
    matthewn5

    Listen to your eyes, not your
    Listen to your eyes, not your bum: get a Bianchi

    #768693
    0
    lookmanohands

    Does the wheel sit snuggly
    Does the wheel sit snuggly in the dropout? From the picture the dropout looks very open, more than the axle diameter 10mm?

    #768691
    0
    Shep73

    Check your jockey wheels are
    Check your jockey wheels are not jamming up or worn out, also check your jockey wheel cage and look for witness marks of the chain catching it.

    Based on past experience.

    #768689
    0
    allez neg

    Actually, I know the problem
    Actually, I know the problem and it’s solution.

    Its fucked. Buy a new bike.

    đŸ˜€

Viewing 15 replies - 1 through 15 (of 37 total)
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