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Dmm Revolver Karabiner

Dmm Revolver Karabiner

Dmm Revolver Karabiner


Dmm
Whats the heaviest thing on your rack? Answer: your rope! This is the curious, lateral thought process that occurred to Fred Hall as he sat pondering the next breakthrough in climbing equipment design. Fred is our resident gear designer and all round genius; he has been a director of the company since the early days and has played a key role in the design of several important and innovative products (such as the Mamba quickdraw, the Predator ice axe). We could write a book about Freds contribution to modern climbing gear, but before we get carried away, lets get back to the heaviest thing on your rack conundrum. The frictional drag that a rope can exert on you, particularly on a long and winding pitch, can be so strong as to actually make upward progress almost impossible. Sure, if youve had the foresight to extend that crucial runner below the roof with a long sling, youre halfway there, but once youre trucking up the final headwall, forearms dangerously pumped, and a few more runners placed here and there as the line of the route twists about, it feels like youre dragging an elephant behind you. Freds answer to the epic rope drag scenario was to look at the hardware end of the system. He decided to fit a pulley roller into the apex of a biner. A simple, but extremely effective solution to an age old problem. In practice, a Revolver placed at changes of direction on a long pitch can prevent that heavy harness feeling. The story doesnt end there though: during the prototype phase Fred struggled to get the weight of the biner down to an acceptable level. However this in itself prompted yet another innovation: the I-Beam construction, a method by which we can significantly reduce the weight of a biner yet maintain its strength. This has since been rolled out to all of the new DMM biner designs. The Revolver also has a further interesting function it can be used in rescue situations as a pulley. And for added security, there are locking versions available. Were not suggesting that you should climb exclusively on Revolver quickdraws, far from it, but it does make sense to have at least a couple on your rack. Strength (Gate Closed): 24kN Strength (Gate Open): 9kN Strength (Minor Axis): 7kN Gate Opening: 24mm Weight: 51g Cat no: A238
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