CMI Expedition Ascender
Best heavy duty ascender for climbers using thick winter gloves.
This is the go-to tool for cold-weather climbing where dexterity is compromised. The oversized grip makes handling ropes with thick gloves effortless, though the robust, heavy-duty build prioritizes pure reliability over lightweight portability. It is a workhorse designed for those who need absolute security in demanding, vertical environments.
$287.00
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Who it's for
- Professional arborists and rescuers requiring gear that survives extreme wear
- Climbers working in wet, muddy, or freezing outdoor conditions
- Winter climbers and industrial workers wearing bulky protective handwear
Who should skip it
- Ounces-counting backpackers and alpine climbers prioritizing a lightweight rack
- Gym climbers using high-end, thin ropes sensitive to abrasion
- Technical cavers and climbers working in highly confined vertical environments
Performance breakdown
Cold-weather usability
Oversized grip design makes operation seamless even with bulky winter gloves.
Rope compatibility
Wide diameter range handles everything from thin lines to thick ropes.
Durability
Rugged aluminum and steel construction withstands heavy, repeated industrial use.
Attachment versatility
Dual tie-in points offer flexible rigging options for complex vertical setups.
Cam reliability
Proven cam geometry ensures consistent, dependable bite on the rope.
Safety mechanism
Intuitive design allows for quick, secure operation under high-stress conditions.
Key Specs
Material
6061 Aluminum body, Cast Steel cam
Weight
498.95 grams
Minimum Rope Diameter
5 mm
Maximum Rope Diameter
16 mm
Breaking Strength
15.12 kN
Dimensions
3.8 inches x 8.0 inches
Device Type
Ascender
Number of Users
1
Intended Use
Vertical climbing and ascending
Know before you buy
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