Technical & Reference Section > Tech and Restoration

Z Rim Help

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hokuspokus74:
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

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