Spoke Size / Spoke Length Database - What size spokes do I need?

Yeah i have a feeling my on-one hub measurements are not 100%. I have built a front on-one hub onto a Rigida DP18 (which is nigh on identical to a deep v albeit heavier) and i used 276mm so i'd go with that.Always better to be an increment too short than too long (for once!) and if worst comes to worst you can always get longer nipples.

One thing to check is the hub measurements as the spoke calcs are not always quite right. I'd suggest measuring it yourself or checking on Arup Sen's website here;

http://www.yogarup.com/wheels/hubs.php

Thanks OldSkoolRacer, just used Edd calc this morning and it has come out as Front 277.9 and Rear 277.3. so that gives 2-3 mm difference to yours. Should i get them somewhere in between the two?

Cheers again for any help