• hemko@lemmy.dbzer0.com
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    8 months ago

    There’s ton of weird niche stuff. Mostly cycling related here but you get the point…

    Bicycle pedal axle thread size
    Bicycle wheel and tire sizing (actually metric standard but inches in common language)
    Also wheel size on cars
    Bicycle steerer tube diameter
    10mm qr axle diameter on hubs (3/8" actually)
    25.4mm handlebar clamp diameter sounds oddly familiar…