3 or 4 cross? the number of times spokes cross eachover between the hub and the rim What does that mean? ^ ^ ^ ^ ^ ^ which one is easiest to build? i would say they are about the same,once you get building you just follow the pattern really How do I work it out? if you go onto dt spokes website they hav a free spoke calculator that you can use,all you have to do is fill in the hub and rim details and how many cross's you want and it'll figure it out for you. steve