-
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
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.