CMI Expedition Ascender
Top Pick
CMI

CMI Expedition Ascender

4.6

Best heavy duty ascender for climbers using thick winter gloves.

This dual-handled ascender turns grueling vertical climbs into a surprisingly fluid, balanced experience. By engaging both arms, it drastically cuts down on fatigue during long days on the rope. You sacrifice a bit of pack space for the bulkier frame, but the trade-off in comfort and efficiency is well worth it.

$187.99

In stock

at

Arbospace

Minimum Rope Diameter Mm 8.5
Maximum Rope Diameter Mm 13
Device Type Handled Ascender
Ascender
Handled Ascender

Who it's for

  • Mountaineers operating in extreme conditions requiring bombproof gear
  • Cold-weather climbers and industrial workers wearing heavy hand protection
  • Expedition climbers facing unpredictable and messy environmental conditions

Who should skip it

  • Ounce-counting climbers seeking the lightest possible vertical kit
  • Minimalist climbers with limited gear storage or small packs
  • Climbers with smaller hands who prefer a more compact grip

Performance breakdown

Ascent Efficiency

Dual-handle configuration significantly reduces fatigue during long, vertical rope climbs.

Excellent

Build Durability

Rugged aluminum construction withstands the harsh realities of daily professional use.

Excellent

Rope Compatibility

Handles a broad spectrum of rope diameters with reliable, consistent grip.

Excellent

Ergonomic Comfort

Thoughtful handle geometry minimizes hand strain during extended periods on rope.

Excellent

Weight-to-Strength Ratio

Solid breaking strength without feeling overly heavy in your gear bag.

Good

Ease of Attachment

Intuitive design allows for quick, secure engagement even with gloved hands.

Good

Key Specs

Device Type

Handled Ascender

Material

Aluminum

Weight

369 grams

Minimum Rope Diameter

8.5 mm

Maximum Rope Diameter

13.0 mm

Breaking Strength

15.1 kN

Number of Users

1

Dimensions

8.25 inches x 7.2 inches

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CMI Expedition Ascender

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Arbospace
Arbospace
In stock
$187.99
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