Petzl Croll Ascender


Chest ascender

MPN: B16BAA (small) B016AA00 (large)

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Croll Ascender
Designed for rope ascents, the CROLL chest ascender is lightweight and simple to use. The attachment holes ensure efficient positioning during ascents.  Croll S is compatible with ropes measuring 8 to 11 mm in diameter. The Croll S has a stainless steel wear plate for durability by reinforcing the rope friction zone. Croll L adapts perfectly to wide diameter, swollen or rigid, ropes while limiting friction. Croll L is compatible with ropes measuring 8 to 13 mm in diameter. 

Efficient and easy to use during rope ascents:

  • used with the BASIC ascender or the ASCENSION handled ascender for rope ascents
  • lower hole is angled to keep the chest ascender flat
  • upper hole for attaching a TORSE shoulder strap to keep the ascender in position
  • catch is opened by pinching, for simple, quick manipulation

Rope compatibility

  • Croll S: 8 to 11 mm diameter rope
  • Croll L: 8 to 13 mm diameter rope


  • Material(s): aluminum frame, stainless steel cam, nylon safety catch, stainless steel wear plate (S only)
  • Weight: 85 g (S),  140 g (L)
  • Rope compatibility: 8 to 11 mm
  • Certification(s): CE EN 567, UIAA

Technical Document Download
Croll S_info.pdf
Croll L_info.pdf



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