My Bike Friday uses 32 hole 406 rim wheels, a spoke every 35mm around the rim

Compare:32 in a 26" wheel its 50mm, in the Brompton* 349 rim, it's 28 spokes 36mm apart.

(they* use a much thicker spole for the rear, than the front)



For same hub, the triangle base beween the flanges is relative to the apex of the triangle.(the spoke in the rim)

so lower height , the bracing angle is wider.