• You'll also get better ERD measurements using a couple of spokes with nipples threaded to where you want them to end, through opposite spoke holes on the rim and measuring the gap between them, ideally in a couple of places.

  • You'll also get better ERD measurements using a couple of spokes with nipples threaded to where you want them to end, through opposite spoke holes on the rim and measuring the gap between them, ideally in a couple of places.

    Nah, on clincher rims measuring from the bead seat (which is nominal size ±0.5mm or better) is easier and more reliable, since it is not affected by any non-circularity of the loose rim

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