• Can the cheap ones tell the difference between 27.2 and 27.0 seat post or 25.4/26 bars.

    It's this kinda job I need generally, where there are two 'standard' diameters less than 1mm apart.

    I have about every size seat post clamp in my spares box. Next time I need a new clamp you can guarantee I won't have the right size and when I order one, the first one won't fit too...

  • They are ideal for this type of thing, generally the accuracy of these devices is more than enough for most stuff on bikes as in engineering precision bike parts are in general pretty agricultural.

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