Home Forums Bike Forum How big is a cassette lockring tool nut?

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  • How big is a cassette lockring tool nut?
  • wombat
    Full Member

    I have a Cyclo branded cassette lockring tool that has a hex nut with which to turn it. For removing the cassette a long adjustable spanner is just dandy but I can’t find a socket that’s the right size to fit it so I can attach my torque wrench for fitting the new cassette.

    The nut appears to be the same size a Bikehut and Park tools version of the same tool.

    A 24mm is too small and a 27mm is too big. I assume I need an imperial 1″ socket?

    Does anyone know what size socket I need?

    bigyinn
    Free Member

    Erm measure your tool? 😉

    mc
    Free Member

    1″ IIRC.

    wombat
    Full Member

    It’s about 1″ across (which is why I thought I might need a 1″ socket) but I assumed that it would be metric.

    I rather hope it is imperial, all this dodgy metric measurement is far too complicated 😉

    sharkbait
    Free Member

    just checked and I’m using a 15/16ths socket….. there’s a tiny bit of movement so prob not 1″

    mc
    Free Member

    15/16″ AF = 23.81mm.

    I know the lockring tool is the same size as the hex cut out on the park chain whip, but for removal I’m sure I normall use a 1″ spanner, although I used an adjustable the last time.

    wombat
    Full Member

    15/16″ AF = 23.81mm

    In this case mine can’t be 15/16 AF as a 24mm socket’s too small

    couldashouldawoulda
    Free Member

    Mine works perfect with a 1″ spanner and nearly as good with a 26mm socket (a bit loose).

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