Petzl B16BAA Croll Ascender

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  • Petzl B16BAA Croll Ascender
  • Petzl B16BAA Croll Ascender
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The Croll chest ascender is unmatched for efficiency on fixed lines.  Compact and lightweight, it does not interfere with progression.  The stainless steel wear plate improves durability by reinforcing the rope friction zone.


  • Used with a BASIC ascender or with an ASCENSION handled ascender for rope ascents
  • Toothed cam with self-cleaning slot optimizes performance under any conditions (e.g. frozen or dirty ropes)
  • Stainless steel cam has better resistance to corrosion
  • Open the catch by pinching for simple, quick manipulation
  • Lower hole angled to keep the Croll chester ascender flat
  • Upper hole for attaching a TORSE shoulder strap and keeping the ascender in position
  • For use with single ropes between 8mm and 11 mm
  • Weight 85 g
  • Certifications:  CE EN 567; UIAA
  • Made in FR
  • Manufactures 3-year guarantee
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Warranty Information

3 year manufacturer
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4 Reviews

  • 5
    Durable. Dependable

    Posted by Lukas Eddy on 3rd Feb 2020

    The central component of my Frog system. Grip is excellent. Easy open, easy close. Great piece of gear.

  • 5
    Standard croll. No problems

    Posted by Ryan on 2nd May 2018

    Solid device for frog ascending.

  • 5
    Best Croll I've used

    Posted by DangoFett on 8th Apr 2016

    My 3rd ascender after many years of SRT caving. Love this new style--small, sturdy, light. I just put 110 feet of ascending thru this Croll and it performed like a champ!

  • 4
    good, but old stlye was a little bigger

    Posted by Dirk Bennett on 24th Feb 2016

    Old style was better, but this one works fine

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