wheel spoke length question

GoldenMotor.com

McBob

Member
Nov 27, 2011
69
0
6
Wisconsin
Can anyone help me out?
I am buying components to build my wheelset. I want worksman alloy wheels, stainless spokes (4 cross) and have sturmey archer 90 MM drum wheel in front and 5 spd 70 mm sturmey archer rear. My son will take a wheel building class at the local cycle shop and I want to buy the components for the build. How do I figure the length of the spokes?
McBob