Straightening a bent mech hanger…

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  • Straightening a bent mech hanger…
  • matthew_h
    Member

    Using a proper hanger alignment tool

    crikey
    Member

    Get a proper big adjustable spanner, and gently bend it straight.

    Works for a few goes with steel, works once with aluminium.

    Bike shops have a special tool to check alignment, but you might be lucky.

    roady_tony
    Member

    once i used a rock and another flatter rock, still working today – thank god it was not a carbon hanger 😉

    Premier Icon Lifer
    Subscriber

    +1 crikey

    Big adjustable spanner and some patience.

    don simon
    Member

    Stone, or in this case hammer, wins. 😀

    Cheers.

    Premier Icon Northwind
    Subscriber

    Got an old cup-and-cone wheel or axle you don’t want? The thread is (usually) the same as the mech thread, so you can screw it in. This gives you a perfect lever for straightening it, but it also gives you a lovely straight edge to judge straightness.

    If you want to make it even easier you can get something suitably straight and stick it into the dropouts while you bend. I use a bit of 10mm threaded bar just because I have it lying around and I can spin a couple of nuts onto it and have it stay in place. Then, just bend it all til the 2 are parallel.

    don simon
    Member

    Is it possible and what’s the best way?
    Squashing it in a vice?
    Trying to bend it back with pliers?
    Anything else?

    PeterPoddy
    Member

    Wot Northwind says. It’s as accurate as a hanger alignment tool IME. I’ve used both methods, an I discovered the old axle method independently. Bracing the dropouts with another axle not only keeps it all rigid, but it stops you closing the dropout up by accident too. 🙂

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