OK ive measured the ERD on the z-rim 389 or is it 397,just i know there is a slight difference in thickness of the rims here is my measurements for 389mm erd
large hub
Hub Flange Diameter = 63mm
Hub Center to Flange Center = 36mm
Hub Spoke Hole Diameter = 3mm
Number of Spokes in the Wheel = 36
Cross Pattern = 4
spoke length = 194
smaller hub
Hub Flange Diameter = 48mm
Hub center to flange = 24mm
Hub Spoke Hole Diameter = 3mm
Number of Spokes in The Wheel = 36
Cross Pattern 4
Spoke length = 192
Is this correct or is my measurements all wrong?
regards graham
