Klemheist ver 2.0: stitching IN the knot
Premium Members can read the entire article from these links:
Credit for this method goes to Silvan Metz, @silvanmetzfotografie
Left photo, normal way to tie a Klemheist. Right photo, the modified method which is much easier to slide.
The Klemheist is one of three friction hitches every climber ought to know. (The other two are the prusik and the autoblock, aka French prusik, or Machard.)
Friction hitches are used typically used as a rope grab in a mechanical advantage haul system, and as a tool for emergency rope ascending.
The Klemheist is handy because you can tie it with either cord or a sewn sling, and you can easily adjust the amount of friction by increasing or decreasing the wraps around the rope.
But DANG, have you ever actually tried to climb a rope with a Klemheist, especially one tied with a skinny Dyneema sling? You probably discovered that it bites down very hard on the rope, and is very difficult to slide up after you've loaded it with your body weight.
Here's a clever variation on the Klemheist hitch, where the stitching on a sewn sling is intentionally tied INTO the hitch, as in the photo above on the right.
WTF?! I learned in Knots 101 you should never do this, why would you?
Answer: for ascending a rope.
By including the stitching in the hitch, it allows enough friction for good grabbing on the rope, but also allows the knot to MUCH more easily slide on the rope when you need to move it.
Notes . . .
Works great with a sewn sling, even Dyneema (Don’t use Dyneema for a rappel backup.)
Grabs pretty well in both directions, but still holds best in one.
Easily adjustable with the number of wraps; more wraps for a skinny rope, fewer for thicker ropes or twin strands.
Some people think this is a Hedden hitch, or maybe an FB hitch. To be honest I don't really care about the name. It's more important to know how to tie it and the best applications, so let's not get distracted by lineage and whether I use the exact right term to describe it. There are lots of “knot-knerds” that like to argue about stuff like this. I’m not one of them.
Sounds cool, how do you tie it?
Check out the Instagram video below from Silvan.
