What is a big safety advantage of an assisted-braking device used correctly?

It gives the belayer a backup if something distracts or hurts them.

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  1. It makes the rope lighter
  2. It acts as a backup for the belayer ✔
  3. It lets the climber skip the knot

Why: Belayers can be hit by rockfall, stung, or distracted. Used correctly, an ABD helps hold the rope even then, which a tube device alone can't do.

Huh, didn't know that: The AAC tells of a 2008 Eldorado Canyon team where a belayer using an ABD still held the leader after being hit.

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The GriGri is the best wingman. It always has a backup plan.
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References

Answer: It acts as a backup for the belayer. Belayers can be hit by rockfall, stung, or distracted. Used correctly, an ABD helps hold the rope even then, which a tube device alone can't do.

  1. AAC Know the Ropes: Assisted Braking Devices americanalpineclub.org/news/2017/5/23/assisted-braking-devices
    Assisted Braking Devices, when used correctly, provide a reliable backup to any belayer.
    Checked 2026-10-12.

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