GME Supply is North America's Premier Outfitter of fall protection, safety equipment, and gear for at-height workers, industry, and construction.

1391 E Boone Industrial Blvd
Columbia, MO 65202
(718) 210-3913

Home > Petzl KNEE ASCENT


Multiple Options Available
Please select an option below


Model *



  • Facilitates ascents on a single rope:
    - Upper strap is connected to the mechanical Prusik to allow the ZIGZAG or ZIGZAG PLUS and CHICANE unit to be raised 
    - CROLL L rope clamp is integrated, for a comfortable ascent in conjunction with a PANTIN foot-mounted rope clamp (not included) 
    - Clip Version: Lower strap with connector attaches to the sewn webbing on the top of the arborist's boot
    - Loop Version: Lower Dyneema strap with foot loop for optimal foot positioning
  • Easy to install and remove:
    - Easy to put in place, thanks to connectors and adjustment buckles
    - Comes with XS size TOOLBAG tool pouch, making for a system that is always ready to use
    - CROLL L rope clamp is easy to install, thanks to the integrated thumb catch
  • Multiple settings adjust to different shapes and sizes
  • Optimal durability, thanks to components available as spare parts

The Petzl Knee Ascent comes in both a Clip and Loop version and the assembly facilitates the arborist's ascent when using the ZIGZAG or ZIGZAG PLUS mechanical Prusik on a single rope. It contains an upper strap, a CROLL L rope clamp, a lower strap with a connector that attaches to the sewn webbing on the top of the arborist's boot or a lower strap with foot loop, and an extra-small size toolbag tool pouch. The system is entirely adjustable and adapts to all shapes and sizes. 

Click here for replacement parts.


  • Material(s): aluminum, steel, nylon, polyester
  • Weight: 280 g
  • Min. rope diameter: 11.5 mm
  • Max. rope diameter: 13 mm
  • Rope compatibility: EN 1891 type A low stretch kernmantle ropes
Country of Manufacture: France
Manufacturer: Petzl