I just broke and then replaced my rear axle on an old timey race bike I bought online.

Everything seems to go smoothly when the bike is up on a stand or on at my side, but once I get on it and try to pedal, the wheel immediately goes off axis and rubs against other parts

BTW it's a hollow/quick release axle, which I measured to be the exact same size as the previous one

What am I missing?

  • 3
    Hi, welcome to bicycles! Some photos and/or part specs might be helpful for people wanting to answer this.
    – DavidW
    Oct 2, 2023 at 13:58
  • I find a similar issue with my vintage Reyolds 531 framed bike. I find the rear wheel axle does slip unless I seriously tighten the QR. So tight that I sometimes find I need to lever it open with a spanner!
    – MiguelH
    Oct 2, 2023 at 14:55
  • @MiguelH that's often because of worn/hardened serrations on the dropout and inside face of the QR's nut.
    – Criggie
    Oct 2, 2023 at 18:35

1 Answer 1


Have you considered changing the whole wheel? I wonder if the core of your axle may be worn or bent.

  • 2
    Note that the question says that the axle is new.
    – DavidW
    Nov 26, 2023 at 2:21

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