EquipementCheck | Pin bindings Safety and Variations

Only rarely do you see well-equipped ski tourers with heavy frame bindings, where almost the entire binding and boot have to be lifted in order to be able to move forwards. Touring bindings with pins are the latest trend. Anybody reading this probably know exactly how pin bindings work, nonetheless here is a quick overview.

All touring bindings, including pin bindings, are subject to the ISO 13992 standard. However, most pin bindings fail the TÜV certification, with the exception of Dynafit TLT Radical, Fritschi Vipec 12 and Marker KingPin, for various reasons. The "normal" pin bindings have no adjustable DIN value in the toe piece and also no adjustable contact pressure, which greatly impairs the release behavior. The release in downhill mode is regulated exclusively via the toe piece and is divided into vertical and lateral release. The vertical release is determined by the force required to push the heel pins apart. The lateral release is the force that leads to the rotation of the entire rear cheek. In order for the boot to release from the pins, the spring tension of the pin mechanism must be overcome.

Since the resistance on the toe piece is usually not adjustable and the fear of false release there is quite justified, some winter sports enthusiasts tend to lock their toe pieces on demanding passages, which is not intended by the manufacturers. Locking them means that they can no longer be opened and the boot remains connected to the ski via the pins in the event of a fall. This of course poses a safety risk and can lead to serious injuries. In addition, most pin bindings did not have dynamic length compensation, but this has now become established in almost all downhill-oriented pin bindings and greatly improves the release behavior.

It is also important to set the Z-value correctly, which results from a combination of skiing ability, weight and the above-mentioned ski, boot and binding combination. It is important to ensure that the Z-value is not set too low or too high and to seek advice from a professional (if you are unsure).

Hybrid bindings such as the Salomon Shift, Look Pivot (with CAST system), Marker Duke PT and the B.A.M. Pindung work in a fundamentally different way here, as they function like a fully-fledged alpine binding in downhill mode. In addition, there are other binding manufacturers who have brought an adjustable and sideways-releasing toe piece onto the market. Ski Trab were the first to bring lateral release of the toe piece in combination with forntal release of the rear toe piece onto the market. So far, however, only Fritschi and Ski Trab offer these variants (Ski Trap BINDING TR1, Fritschi Tectron, Fritschi Vipec Evo).

These four bindings lead to another safety-relevant issue, the release behavior on the ascent. With conventional pins, you lock the pins in the ascent (also with all hybrid models). This means that in the event of an avalanche, the skis cannot detach from the boots and pull you deeper into the avalanche like an anchor. The four models mentioned above are not locked during the ascent and therefore also release during the ascent in the event of an avalanche, which offers an advantage over the other variants.