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I had my rear wheel off of the bike noticed that as I spin the axle it appears to be bent – the freewheel end of axle, for lack of a better way to describe it, orbits the centerline of the axle.

First, I'd like to know if there are typically causes – things I should check in addition to repairing the axle.

Second, what should I be looking for to determine if a repair is viable? Could there be damage to the races in the hub? Are there better or worse grades of axle?

It is a 6-speed, quick release (hollow) axle, the hub brand appears to be Quango (marked on the bearing cap/seal) threaded for a freewheel (not a freehub).

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  • there are numerous existing questions about bent axles so I strongly suspect this is a dupe. Perhaps this?
    – Móż
    Feb 13, 2016 at 21:18
  • This: bicycles.stackexchange.com/questions/24416/…
    – ojs
    Feb 14, 2016 at 12:13
  • It's actually not unusual for the sprocket cluster to appear to "wobble" a bit (a millimeter or so) as it's rotated on the hub. This usually isn't a problem. If the entire hub wobbles on the axle as it turns that's a problem (but oddly one you generally wouldn't notice with the wheel on the bike). Feb 14, 2016 at 13:19
  • The question starts with "I had my rear wheel off of the bike" so I would guess the wheel was not on the bike. The next part is spinning the axle, something that you can't do with the wheel on bike.
    – ojs
    Feb 14, 2016 at 17:12

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