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DMM 9.1mm Crux Rope
  • DMM 9.1mm Crux Rope
  • DMM 9.1mm Crux Rope
  • DMM 9.1mm Crux Rope

9.1mm Crux 30m Dry



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Our thinnest single rope is ideal for pushing boundaries across all seasons and terrains; everything from redpointing sport routes at your limit to fast alpine ascents. The triple certification gives the Crux the flexibility to be used in twin, half and single rope systems for ultimate versatility. The Crux is the rope for when low weight, superb handling, and top flight performance are required.

Superlight, high performance single rope.
UIAA Dry treated for year round use, improved life and less drag.
ThermoControl treatment for superb handling and stability.
Triple Certified: Twin, Half, and Single.
Two colorways for effective guiding with clients.

Retail price

US$ 162.66
Price is a static conversion from
€140.00 EUR
Weight 54.0 g/m
3.571 lbs / 1620 g
Diameter (millimeters) 9.1 mm
Length (meters) 30 m
Rope Type Single/Half/Twin 
UIAA Falls (Single / Half / Twin) 5 falls  / 20 falls  / 22 falls
Dynamic Elongation (Single / Half / Twin) -
Static Elongation (Single / Half / Twin) -
Impact Force (Single / Half / Twin) 9.00 kN / 6.90 kN / 10.60 kN
Dry Treatment Sheath­
Sheath Proportion (%) 33.0 %
Sheath Slippage (mm) ­
Type of Middle Mark None
Rope End Marker None
RFID / NFC Option


This technology can be helpful if you are a gym or professional business where you'd like to track the usage and age of your ropes.

RFID is how items are uniquely identified using radio waves (Radio Frequency Identification). It's for 1-way communication from 10cm to 100m away depending on the frequency. Example: Airport Baggage.

NFC is a subset of RFID that is restrained to close proximity communication typically less than 10cm (Near Field Communication). NFC chips can operate a 2-way signal to exchange information. Example: Apple Pay.

Certification ­

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The UIAA equipment standard provides a baseline for equipment performance in a test lab under controlled conditions on new equipment. Although these test conditions are relevant to the conditions encountered climbing, conditions encountered at the crags and the condition of the equipment are equally important. This recommendation from the UIAA member federation The British Mountaineering Council (BMC) provides vital equipment information that is NOT explicitly addressed in the standard, particularly failure modes of the equipment and recommendations for the use, inspection, maintenance, and retirement of equipment.