The Ribcor line has always been unique due to its visual technology that helps generate amazing loading and quick release. The new Ribcor 45k features a unique stiffness profile that mirrors the RIBCOR shaft and makes it easy to load. The SXX2 blade goes from stiff in the heel to extra stiff in the toe for a quick release. With a power taper ratio of 3:1 less energy is wasted down into the ice and more energy is transferred all the way through to the blade.