Hybrid bindings proved to be a game changer for freeriders who opt to earn their turns. Not too long ago, you could either trust a classic pin binding for a much better performance uphill or you could use one of those frame bindings which basically mount a classic alpine binding on a moveable frame. The latter were very reliable on the way down, but since you need to lift the whole binding including the frame on each step, they take much more effort on the way up—plus the frame raises the stance which some like and some don’t. Pin bindings, on the other hand, work great for skiing when demands on stability aren’t exceptionally high. However, with their wide powder skis freeriders tend to exert quite a bit of torque on the binding mechanism. Particularly the classic pin heel piece with its small width was prone to twist when higher forces were at play.
A first remedy were bindings that combined a classic, yet removable alpine heel piece with a pin toe piece. Since the toe pin jaw has a much greater width, it’s less problematic and offers all the advantages of pin bindings on the way up, specifically a perfect axis for walking and the absence of weight that needs to be lifted with the boot. However, the pin toe piece, although offering great contact with the boot, is still inferior to a classic alpine toe piece when skiing, since it offers less energy absorption. It’s important to note here that a binding has two functionalities when holding a boot in place. One is to apply simple force, which is measured on the classic DIN scale. The second is to absorb energy in a more dynamic scenario. A binding never releases immediately, there’s always some room to move where the spring applies its force against a release. If that stretch before the release is longer, more energy is absorbed. Because of the design of the pin engagement, a pin binding has less of that room to play with compared to classic alpine bindings. Therefore, when it’s really rattling on your skis, an alpine toe piece will hold the boot longer at the same DIN setting compared to a pin toe piece.