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Update: Rear wheel slipping out of dropout on drive side/QR

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  • April 23, 2016 at 12:36 pm #25644
    MadHatter

    Just bought a cheap bike the other day and noticed that when load is put through the drivetrain the rear wheel slips out of the drive side dropout causing the tyre to rub on the left hand chainstay.

    Took it to LBS who told me I just needed to tighten the QR up more, they sorted it and it seemed fine. Another mech looked at it at a free university event and I found after riding off the wheel was coming out again. Stopped to tighten it time and again and it keeps slipping out. At one point I actually tightened it so mucht here was a popping sound on closing the lever…… So I’ve closed it as much as possible and the wheels still slipping out.

     

    Included some photos of the firstly the offending wheel with QR open and closed and then with a spare wheel (rim badly damaged) which I am about to try to see if the problem replicates.

    Note gap between dropout and is it the hub? in the picture where QR is open. Do I need a spacer washer in there perhaps?

    Note the paint damage on dropout indicating movement of skewer?

     

    https://picoolio.net/images/2016/04/23/1135a0f.jpg
    https://picoolio.net/images/2016/04/23/12e00ae.jpg
    https://picoolio.net/images/2016/04/23/13229b4.jpg
    https://picoolio.net/images/2016/04/23/142cfc8.jpg
    https://picoolio.net/images/2016/04/23/15fcee7.jpg
    https://picoolio.net/images/2016/04/23/167dd81.jpg
    https://picoolio.net/images/2016/04/23/17daad3.jpg

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Viewing 12 replies - 1 through 12 (of 12 total)
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  • April 26, 2016 at 11:26 am #870445
    0
    ashwinmevin

    Its slipping from the

    Its slipping from the dropouts. the first time it was using the PX skewers and today was using my new American classic Areo 420s 3 wheelset. using the AC skewers. Very tight! had to stuggle adjusting it. Had to stop 3 times during ride to re center and drive side popped out.

    April 26, 2016 at 11:25 am #870443
    0
    ashwinmevin

    Its slipping from the

    Its slipping from the dropouts. the first time it was using the PX skewers and today was using my new American classic Areo 420s 3 wheelset. using the AC skewers. Very tight! had to stuggle adjusting it. Had to stop 3 times during ride to re center and drive side popped out.

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    April 25, 2016 at 4:07 pm #870441
    0
    MadHatter

    Well they’ve taken it back

    Well they’ve taken it back and were understanding of how I’d been messed about with no assessment of frame and too quickly sold incorrect solutions.

    I’ll update.

    Appreciate your comment there on the quality of the frame, it’s a Halfords bike.

    But God Damn this bike makes me smile when its wheels are in line.

    April 25, 2016 at 3:28 pm #870439
    0
    Daddylonglegs

    Hi MadHatter

    Hi MadHatter

    The root of your problem is this is not a great quality frame. The fact that the frame or the dropouts or both are possibly bent is the final straw really. The actual cause of your difficulties is that the dropouts are not lined up with each other and, judging by your pics, they are not parallel either. (This is why cast dropouts are always far better than pressed steel, as they are difficult to bend). The reason they are not parallel is because they are too far apart for the standard wheels you are attempting to fit. When the QR or nut pulls them together the dropouts contact the faces of the wheel spacers and QR unevenly and insufficient grip results.

    If I remember from my bike mechanic days, we would occasionally get in very cheap customers’ frames of uncertain parentage (usually Far-Eastern) that had oddly spaced dropouts for non-standard axle widths. We had all kinds of trouble with these, but if the customer was prepared to pay what often amounted to more than the value of the bike, we could affect a repair of sorts. Be prepared to dump the QR for nuts though – the makers of this bike never intended such levels of technology.

    Thanks to the low-grade steel the frame is made from, it’s actually not always that difficult to re-align a mildy bent frame. Or to close up that rear triangle a bit and get the dropouts parallel. It’s hard to explain, but all you need is a couple of metres of string, a ruler and a bit of muscle. Look it up on the internet, there should be a diagram or film somewhere.

    Mike the Bike above is about right with his comments.

    April 25, 2016 at 3:16 pm #870437
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    MadHatter

    Best of luck with that

    Best of luck with that Marauder. Horrible to give up on a bike.

    I’m about to go down the shop which told me it wasn’t bent and advised me to tighten QR as much as possible, which ended up breaking my axle, and then sold me a new wheel saying a track nutted wheel would fix the problem. Tell them again that the frame is bent and that they’re gonna either give me money back for wheel I needlessly broke and had to replace or they bend the dropout to a useable state.

    I’ll let you know their response!!

    April 25, 2016 at 3:03 pm #870435
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    Marauder

    Your issues sound very like

    Your issues sound very like what I am having with my 5 year old bike.

    My rear wheel keeps becoming unaligned after only about 2 mins of riding no matter how much I tighten the sckewer and it seems to be the same with spare wheels too.

    I took the bike to a LBS on Saturday and they said the either the frame or the rear dropout(s) might be damaged.  Waiting to hear back from them and I can repost their responses here if you like.

    April 24, 2016 at 4:52 pm #870433
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    mike the bike

    You’ve really got to be there

    You’ve really got to be there, but if I had to guess from your picture of the open QR, your non-driveside drop-out is bent, resulting in the QR fighting the frame against its natural springiness. Perhaps as a result of this the frame looks to be a few mm too wide for the hub, another possible source of problems.

    You have three choices, I think : 

    Abandon the frame as beyond economic repair.

    Attempt a cold manipulation of the drop-out, maybe using a large adjustable spanner.

    Attempting a hot manipulation using a torch.

     

    The first option means accepting defeat.  The second may weaken the frame, even snap the drop-out.  The third will cost money (if you don’t have a torch and some skill) and will ruin the paint.

     

    Best of luck sir.

    April 24, 2016 at 4:07 pm #870431
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    MadHatter

    Alright now I’m pi***d!!

    Alright now I’m pi***d!!

    Replacement rear wheel slipping out of alignment. Problem persists.

    This means it can only be the frame right?

    In fact I’m pretty sure from these pictures you can see the dropouts are bent.

    Getting pretty f*****ng sick of bike shops telling you whatever you either want to hear or telling you your diagnosis is wrong and the right solution is buying either time or parts from them….

    https://picoolio.net/images/2016/04/24/Wheel11024x57635877.png
    https://picoolio.net/images/2016/04/24/Wheel21024x5763a209.gif

    April 23, 2016 at 6:50 pm #870429
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    MadHatter

    Thanks for the comments guys.

    Thanks for the comments guys. Been and bought a second hand wheel with track nuts and changed cassette onto it.

    Seems liek the popping noise was snapping the axle, when I removed QR skewer bearings were just falling out..

    New wheel a little out of true but hopefully it will stay in!

    April 23, 2016 at 3:32 pm #870427
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    StraelGuy

    I might be wrong but it looks

    I might be wrong but it looks like the hub spacing might not match the drop-out width exactly. If that is the case, the clamping forces of the QR won’t be even on the drop-outs.

    April 23, 2016 at 3:21 pm #870425
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    Anonymous

    That QR looks like a bodge

    That QR looks like a bodge job and the very new shiney spacer (is it actually a ring?) may not be clamping a very big load area onto the drop out.

    Try a shorter QR?

    April 23, 2016 at 2:00 pm #870423
    0
    CXR94Di2

    Try a washer, or a grip
    Try a washer, or a grip washer, even 200 grit emery paper. Fold it in half, apply a little glue to stick both halves together, put a hole in it, one thin grip washer

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