Skinny rope fans often struggle to find a suitable rappel device to match their favorite cord. The ultralight Nano 8 from Mammut is the new default choice. Weighing only 40 grams, the miniature eight-plate features a unique shape designed to help you achieve the ideal rappelling speed. It also has a handy tie off prong so you can free your hands if you need to set up another rap. A perfect device for those light and fast technical missions.
- Lengthwise breaking strength of 16 kN.
- Ideal for low diameter ropes (6-7.5mm).
- Verified weight of 40 grams.
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Questions & Reviews
Extremely useful device for abseiling and belaying when using very narrow 6-7.5mm ropes; particularly for skitouring, mountaineering and glacier travel. You MUST spend time testing it and getting used to it. A backup Prussik is highly recommended when single-roping. I also notice that the Mammut setup doesn't quite give you enough friction single roping, but putting the rope back through the 'crab you have the Nano8 on forces the rope to drag across itself, adding more friction. Overall extremely highly recommended. See photos of me with mine here: https://twitter.com/jamesmadelin/status/1115232494939529216
Comment on this review:
2/7/2016
I have not been able to find any available technical information indicating how small of diameter ropes this device is designed to work with. Will the Nano Eight work with twin 6.0 mm rappel ropes?
2/10/2016
Hi Nat, it works well with 6mm ropes. Always test in a safe place with a new rope before jumping on something big!
4/9/2019
Mammut publishes the diameter range on the actual device, not to mention in their downloadable manual too! They list it as suitable for 6 - 7.5mm ropes. I own one, for use with the super-slippery 6mm Petzl RAD line. It works incredibly well, though you MUST spend time testing it and getting used to it. A backup Prussik is highly recommended when single-roping. I also notice that the Mammut setup doesn't quite give you enough friction single roping, but putting the rope back through the 'crab you have the Nano8 on forces the rope to drag across itself, adding more friction. Overall extremely highly recommended for the specialised use of small diameter rope abseil and belay. See photos of this here: https://twitter.com/jamesmadelin/status/1115232494939529216
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