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Index Ascender

Item# BD6200040000ALL1
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Overview READ MORE
Pushing the evolution of ascenders, the Index features a trigger release for fast, effortless operation on hard-to-clean pitches and uses an ergonomic, dual-density grip to increase comfort for long days on the wall.


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Engineered for hard-to-clean pitches, wild conditions and long days, the Black Diamond Index Ascender is a robust workhorse for jugging in all weather. The ascender’s trigger-finger release allows for hassle-free operation and its molded grip and lightened frame offer quick maneuverability and mobility. With aggressive teeth, the Index is primed for gripping icy ropes, and a large clip-in point and left- and right-handed versions add compatibility.

  • Trigger-finger release for fast operation
  • Ergonomic dual-density grip
  • Lightened frame
  • Aggressive teeth for extra grip on icy ropes
  • Large carabiner clip hole
  • Left- and right-handed versions


Tech Specs

Tech Specs

Weight :   200 g (7 oz)



Index Ascender is rated 5.0 out of 5 by 8.
Rated 5 out of 5 by from Index finger release.... Priceless! As a member of SAR, I am on rope frequently and the Index trigger release is phenomenal. I tend to hold lower on the grip and would always have to crank my wrist to release my petzl ascender. I no longer need to break grip to release my ascender with or without gloves. This fine tuning shows that BD takes time to get the details right. Got home from my first call out using my BD Index Ascender and officially got rid of my Petzl Ascender. Great job as always BD!!!
Date published: 2018-03-30
Rated 5 out of 5 by from Smoothest-movers ever! I used to use the original compact cast-aluminum Swiss ascenders for walls, then switched over to the roomier French units for camera-work. Lately, my projects are not so committing (nor commercial), but more varied and intricate (as well as solo), so I can appreciate how the new Index Ascender's design has resulted in a much more refined device for remote rope-work on steep rock and ice. For example, I like the bi-density layer over the cam-retention latches for repetitive long-term wear-protection (for the main-frame at the cam's pivot-point), which is also the soft surface over the cam's namesake feature, allowing the user to conveniently release the cam's contact with 8~13mm ropes using the index-finger (or with a single movement of the thumb, when it's time to remove the ascender from the rope). Bonus points for the soft traction-indent on the thumb-tab to push the cam's locking-mechanism securely onto the rope!! The comfortable handles work well with thin, thick or no gloves, and two biners fit through that bottom hole!
Date published: 2016-05-03
Rated 5 out of 5 by from Great Quality Love the tough construction and easy to use design of this ascender. Makes it possible to climb solo and feel confident in doing so. Definitely would recommend this.
Date published: 2015-06-26
Rated 5 out of 5 by from Width For those of you that are wondering - fits 8mm - 13mm ropes.
Date published: 2019-11-08
Rated 5 out of 5 by from Well made, easy to use. Used these a few times recently and they work just better than other brands I have tried. Huge upgrade from the older BD ascenders. Great product and well made.
Date published: 2015-09-30
Rated 5 out of 5 by from Smooth and Intuitive I've been using these ascenders for search and rescue work and they have been awesome. Easy to operate with gloves on, provide great grip, and the option to use your index finger let's you actuate the cam from different angles. Highly recommend!
Date published: 2016-10-21
Rated 5 out of 5 by from Exactly what was needed The only essential piece of gear I was missing. A must have for any big traverse. I find the black diamond version of the ascender more comfortable to use than the petzl. This could be due to the grip of that it is slightly larger so fits bigger hands better. Definatly something I'd recommend
Date published: 2018-05-12
Rated 5 out of 5 by from Good Stuff As advertised. These are exactly what they said in the description.
Date published: 2019-10-09
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