just the first bunch of pairs didn't when they first came out..now k2 fixed that and they do have a mounting point. they are pretty much made for center mounted..they kill everything
most of K2s riders do ride on the Fujatives, thuogh they all do ride on the PEs also. and the fuj's do have a mounting line, but its marked all the way up to true center. i'm pretty sure all of the K2 guys ride em true center.