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RAD System

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Why We Like the RAD System

There's really no other alternative out there when a crevasse stands between us and the summit. Petzl's RAD (Rescue and Descent) System is an ultralight, compact, super-simple way to rope up for glacial traverses and rescue situations. The kit includes Petzl's Rad Line which was developed specifically for crevasses, and the compact Micro Traxion, Tibloc, St'Anneau sling, and Sm'D carabiners can come in handy on most mountainous adventures whether we're mountaineering or climbing at the local crag.


  • Ultralight rescue system for skiers and mountaineers near crevasses
  • 30m of hyperstatic Rad Line (6mm) designed for glacial travel
  • 1 Micro Traxion progress-capture pulley locks for easy regripping
  • 1 Tibloc is one of Petzl's smallest, lightest ascenders
  • 3 Sm'D screw-lock carabiners come in handy on every climb
  • 1 St'Anneau lightweight, flexible sling assists in building anchors
  • 1 packable pouch with ice screw holders and harness attachments
  • Item #PTZZ21X
aluminum, stainless steel, high-modulus polyethylene, polyester, nylon
Rope Diameter
[Micro Traxion] (breaking strength) 7,5 x 2 kN [Sm'D] (major axis) 23kN (minor axis) 8kN (open gate) 7kN [St'Anneau] 22kN
[Rad Line] 30m [St'Anneau] 120cm
Claimed Weight
[Sm'D] (single) 1.6oz [Micro Traxion] 2.9oz [Tibloc] 1.3oz [St'Anneau] 1.4oz [Rad Line] 1lb 7oz [Tibloc] 1.2oz
Manufacturer Warranty
3 years