I'm building up a new set of road/cross wheels but I'm going with disc hubs for future proofing. I've built a few wheels in the past but I've either bought the parts as a bundle or just replaced hubs/rims on existing wheels.
I've gone for Open pro's on Novatec D811SB/D812SB hubs but looking at the hub specs listed (pcd & flange to flange measurement) can't see how I could possibly work out the spoke length required. I can obviously wait until they arrive and measure them but I'd like to get the spokes ordered. Can anyone help?