iro cold fusion rim aka velocity fusion front wheel is 32 hole 2 cross DT REV 1.8/1.5 Rear is 32 hole DS Super comp 3 cross NDS Revolution 2.0/1.5 3 cross it was such a ***** getting them to all line up i literally spent over an hour trying to do it, first tightening up the nipples more then letting them all go really slack. I don't know if it was because the lightness of the spokes or what but i didn't have any trouble like this on the other wheels i first experimented with. at any rate, I got it sorted out now and am making good progress on the front wheel. got it laterally true, have to get a hop out of it and then probably get overall tension up a bit but so far so good!