How to use 8.6mm cobra II correctly, precautions, lifetime, care and maintenance with instructional pictures.
8.6mm Cobra II Unicore 70m 2xDry
Description
The great classic for adventure climbing.
Light and free-running for ease of use on long routes, on the crag and in the Alps. Technical and robust enough to sustain the most difficult loadings, it is even better today because it now benefits from all the advantages of the UNICORE technology.
This is the multi-use rope par excellence, if you don't want to own more than one double rope, it's the COBRA you must have. It has a low impact force (5,1 kN) to minimise anchor-point loading, and a sheath of sufficient thickness to withstand the most aggressive rock, all for only 48 g and a record number of falls = 16.
STRONG POINTS:
• Excellent compromise between strength and lightness.
• Low impact force and raised number of falls sustained.
• The rope doesn't bunch up and remains supple for the long term.
• Allows escape by abseil even if the sheath is cut.
The great classic for adventure climbing.
Light and free-running for ease of use on long routes, on the crag and in the Alps. Technical and robust enough to sustain the most difficult loadings, it is even better today because it now benefits from all the advantages of the UNICORE technology.
This is the multi-use rope par excellence, if you don't want to own more than one double rope, it's the COBRA you must have. It has a low impact force (5,1 kN) to minimise anchor-point...
read moreRetail price
When you click a link below and then checkout online, no matter what you buy (climbing gear or not), we get a small commission that helps us keep this site up-to-date. Thanks!
Weight | 48.0 g/m 7.410 lbs / 3360 g |
Diameter (millimeters) | 8.6 mm |
Length (meters) | 70 m |
Rope Type![]() ![]() | Half (Double) |
UIAA Falls (Single / Half / Twin)![]() ![]() | 0 falls / 16 falls / 0 falls |
Dynamic Elongation (Single / Half / Twin)![]() ![]() | 0.0 % / 35.0 % / 0.0 % |
Static Elongation (Single / Half / Twin)![]() ![]() | 0.0 % / 11.5 % / 0.0 % |
Impact Force (Single / Half / Twin)![]() ![]() | 0.00 kN / 5.10 kN / 0.00 kN |
Dry Treatment![]() ![]() | Sheath & Core UIAA Certified Dry (aka Golden Dry) |
Sheath Proportion (%) | 39.0 % |
Sheath Slippage (mm) | 0 mm |
Type of Middle Mark | None |
Rope End Marker | None |
Certification | CE, EN, UIAA |
RFID / NFC Option![]() ![]() | Yes, RFID |
No reviews yet.

The Cobras are great ropes, especially if like myself you're looking for a rope that will last and be up to many different days out across the disciplines. I am totally sold on the UNICORE construction, especially for stuff like sea cliff climbing where the chance of cutting through the sheath while abseiling into a crag is something you need to consider. They handle well and over the last few months have withstood repeated days out on rock and snow. The Cobras sell at £121 for 50m and £145 for 60m, which is middle of the road in terms of price - but you'll not be replacing these anywhere near as fast as a cheaper rope, so it's money well spent in my eyes.
No voice, but the demo speaks for itself as Beal cuts a traditional rope and a rope with Unicore technology. The difference is certainly dramatic.
The demo speaks itself the quality of Unicore rope as Beal cuts a traditional rope and a rope with Unicore technology.