[Closed] Rear wheel issue on road bike, drive side slipping

You need to do the QR's up tighter is my opinion.

Need decent skewers IMO.

Are you sure it's not wheel flex?

Sounds more like the wheel flexing. I would have thought that the wheel would be pulled upwards by pedalling forces?

If they are the planet x own brand wheels then they are pretty flexy.

Vertical dropouts and the wheel popped out? Happened in the days of horizontal, but I've never seen it on verts

must be as wwaswas suggested

Do the skewers & outer face on the axle have serrations?

Either wheel flex or shit skewers. Try a pair of Shimano skewers and a different wheelset.

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.

Davidtayforth - if the wheel pops out on the drive side it will rub the non drive side. I noticed the dropouts are very smooth with no bite marks, this a bit strange?

It sounds to me as though the skewer is not tightening on the dropout but onto something else, not sure what else it could be though.
Looking at the frame on the PX site it looks like the drop outs are slightly forward facing, my old Pinarello is similar and I have to tighten the QR silly tight to stop it slipping.
Is there any movement between the dropout and the mech hanger?

Yes looks like a fault and not gripping properly. It's not just paint thats gone, carbon too. 1mm dip. Email sent to Planet X.

I'm not going to ride it. Probably dangerous and am not going to risk the chain stay snapping whilst cars whizzing past me at 60mph.

I was expecting to see damage at the drop out in the picture. Can we assume there are no marks when it had slipped out, despite a massively tight qr?
+1 for the qr tightening against the axle of something other than the dropout/as well as the dropout.

Edit- too slow...

How is a wheel popping out of a vertical dropout? All the forces acting on the wheel are pushing it up or pulling it forwards. Are you *really* sure it's coming out of the dropout? Have you tried putting the wheel in and pulling the rim across by hand to see if you can pull the tyre into the dropout?

Worth repeating that the only decent skewers are internal cam ones like Shimano, though.

Bez - Trust me its pulling out. - I’ve tried two - 2! wheel sets and 2 different QRs. the PX ones and American classics.

Looking at the frame on the PX site it looks like the drop outs are slightly forward facing

Showing superficial paint work loss on the outside of the dropout.

This one showing the inside, mech hanger screw has a mark on it. Showing me that there isn’t enough material for the QR to grip.

Edit - photo has bad contrast and unable to see the screws. I only have my phone available atm.

Oh and I should say, If I tighten the QR really tight, the mech hanger moves throwing accurate gear changing out of the window. Never seen that either. Bloody cheap carbon frame I guess.

I have seen this before on a customers Planet X N2A bike. I sold the customer Hope Skewers and they didn't come back to the shop. That isn't quite the same thing as saying that was the solution, as we didn't sell them the bike, so the ultimate responsibility to resolve the issue didn't lie with us.

Cheers Waderider, I guess the crux of the problem is that not only paint has worn the carbon has too, making feel unsure of 'safely' riding it.

I guess I will wait until Monday to hear back from PX.

I guess im flogging a dead horse here, but just popped in the AC rear wheel with no cassette. There is a gap between the axel and the dropout. This is only on the drive side, the non drive side is perfect... I'd say the dropout was to large.

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Is the other side the same? ie if you fit the wheel with the axle touching both forward edges of each dropout, is the wheel straight?

A fudge would be a coke can shim, though that doesn't repair the chainstay of course.

Other side is nice and snug as my other bikes.

either the hub axle is too thin or the dropout slot too big.

In either case....WARRANTY

Janesy. Email me. In profile. We will get it back. I want to have a look. Cheers.

Apart from the worrying gap is the screw head on the inside of the drop out flush with the frame? Looks like one of them is sitting proud.

I actually have the opposite problem, where the drive side axle is too large for the dropout ... was about to fix that in the lathe, and thought I'd do a little searching on the web and came across the post. Interestingly, I have another of the exact same model wheel, but 12 months apart, (both Mavic Ksyrium Equipe's), and one of the rear fits in my bike and the other has the too large an axle.

I am suspecting a different size "standard" in play here, but can't really find much on the net about out.