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I had a problem today out on a trail where my rear wheel came off centre and started rubbing against the left chainstay. I re-centred it and tightened up the QR as tight as possible but after a few seconds with big old me on the bike it happened again. The right hand side of the skewer keeps popping out of the dropout by 5-6mm and won't stay in.
My thoughts are it's the QR skewer is worn and not gripping enough.
Any thoughts on this before I go out and spend money on a new skewer if that's not the issue
Is the QR bottoming out on the end of the axle? Would stop it tightening properly. Can happen with shimano hubs if you get bearing cones off centre.
I'll have to check in the morning. How do the cones become off centre, and would I have to take the axle out and adjust the cones to solve the problem?
you just need to look at the wheel when it's in the hub with no QR fitted - if the end of the axle is flush with the outside of the drop out then you might have a problem.
don't need to get the axle out, just use some cone spanners to undo both ends and then retighten them to centre the axle in the hub.
Hub collapsed?
I had the same issue on my road bike...turns out the freehub had come loose somehow so the wheel appeared centred when put in but would shift while riding.
Wwaswas, would you not get rubbing of the rotors if this happened?
no, 'cos the hub itself is still between the dropouts the same as it ever was - it's just the axle has 'shifted' (normally during maint) to one side. The problem is that the QR is not torquing correctly as it bottoms out on the end of the axle, not the dropout.
[edit] this;
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explanation here: [url= http://www.parktool.com/blog/repair-help/hub-overhaul-and-adjustment ]http://www.parktool.com/blog/repair-help/hub-overhaul-and-adjustment[/url]
Got you, axle is misaligned, not the cone nuts relative to the rotor face.
Could be the axle has snapped, I've had this happen a couple of times on my Hope XC rear hub