if you want something lighter than the 22's, you should get the 23's or 33's (at least i think those 2 are both lighter). i wanted to build up some 33's, but it was easier for my shop to get velocity than mavic... i ended up going with the dyad (which isn't really comparable to any of the mavic's due to being significantly wider (18-622) vs. (15-622).

keep in mind i am no expert about these things...