O'Brien 2007 Sixam II Slalom Water Ski

O'Brien 2007 Sixam II is the World Record holding slalom ski. Full continuous radius concave bottom with a 3/16" flat rail on each side to enable ski to roll on edge with less effort and for more holding power. Transitional bevel is defined in forebody turning into a continuous round halfway back providing tracking on front half of ski and pivoting ability at tail for tight radius turns.