World Library  
Flag as Inappropriate
Email this Article

Alpine touring binding

Article Id: WHEBN0002852039
Reproduction Date:

Title: Alpine touring binding  
Author: World Heritage Encyclopedia
Language: English
Subject: Ski binding, Alexander Hug (ski mountaineer)
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Alpine touring binding


An alpine touring binding (also known as an AT binding or randonnée binding) is a specialised ski binding with a releasable locked down heel that can be used for ski touring and backcountry skiing. Most AT bindings have DIN safety release as in an alpine binding. Specialized alpine touring ski boots are also used, something of a cross between a downhill ski boot and a plastic climbing boot, which are light and flexible enough to be comfortable to walk up in while still being stiff enough to provide good control when skiing down. These boots have soles with traction and the ability to hold a crampon when climbing steep slopes with the skis carried on one's backpack.

Use

During ascent, the skis are fitted with self-adhesive plush climbing skins to prevent them from slipping backwards. The ski binding heels are released to allow a Nordic style of striding. The skins are very effective in preventing the skis slipping backwards, much more so than grip wax, and quite a steep hill can be ascended directly without resorting to side stepping or herringboning. The heels of the bindings are often fitted with adjustable steps to maintain the soles of the boots horizontal on a steep climb. Prior to descent, the skins are removed, the heel steps removed or lowered, and the binding heel piece is locked down. Descent is then by conventional alpine skiing technique.

Compared to Nordic boots and bindings, the alpine touring binding is less suitable for undulating terrain, but is more versatile on steeper and more difficult snow. Like telemark skiing gear, this equipment is popular with people from an alpine skiing background; but unlike telemarking, it requires no learning of a new type of downhill turn. Because the fixed heel provides additional support and lessens the force on the toe hinge in downhill mode, modern AT gear and telemark gear are comparable in weight, with both sacrificing control on the descent to reduce weight.

Variations

Most touring bindings are designed for ski boots falling under one of two ISO specifications:

  • alpine boots. In this variation the pivot is located in the front of the binding.
  • ISO 9523:2008, for boots in which the pivot is formed at the boot / binding interface.

The two setups are mutually incompatible: in the former, the boot lacks sockets to engage ISO 9523 compatible bindings, while the later boot toe and heel-piece dimensions are incompatible with ISO 5355 bindings.

Manufacturers

The main manufacturers of AT bindings are Silvretta, Fritschi Diamir, Marker, Dynafit and Plum. Backcountry Access also produces a binding adapter to allow downhill alpine skis and bindings to undertake limited touring.

See also

References

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.