The Dynafit binding looks meager, can I jump off cliffs and ski bumps with them, like I do with my alpine bindings?

Moderate drops, with good technique, are possible with the Dynafit. Relaxed bump skiing is fine, but you won't be able to follow Glen Plake down through those Prius sized humps. Taking big air is not recommended if for no other reason than all Dynafit compatible boots are "soft" relative to alpine boots, and may not offer enough for/aft support for landing a jump at 60 mph on a huge pair of skis.

Moreover, forcefully landing a ski in soft snow can bend (de-camber) the ski so much it jams the boot between the binding toe and heel, and thus pops the boot out of the binding. While the Dynafit binding is engineered to absorb some of this force, via the space between boot heel and binding, alpine bindings and some other randonnee bindings can absorb more of it. Indeed, the more "alpine-like" Fritschi Diamir Titanal rando binding does a better job of dealing with this situation, because the binding heel and toe are mounted on a rigid bar instead of the ski.

If you want a randonnee binding ... more.

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