• This topic has 5 replies, 5 voices, and was last updated 10 years ago by ndg.
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  • Darkside: Retro road bike mudguard bolt size?
  • ndg
    Free Member

    I’ve a retro (1980) road bike and a set of mudguards for it. Unfortunately the bolts to attach the two together have gone walkabouts. Does anyone know what size I should be looking for, even the great Sheldon Brown site has failed me?

    I’m half expecting it to be a random BA thread or something……

    Cheers

    TiRed
    Full Member

    I’d start with metric M4. It’s not that old 😉

    EDIT: then 5/32nd conversion table

    Sam
    Full Member

    Most likely to be M5.

    rusty90
    Free Member

    If not M5 then it could be 2BA (if old and British)

    grahamg
    Free Member

    Was it definitely threaded?

    ndg
    Free Member

    Cheers for the ideas. Definely threaded, and close to but not M5, so I’m going to buy some 2BA bolts and hope….

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