Mammut Crag Sender 9.0 mm x 70 m Dry Rope
With next-generation technology for performance rock climbers, the Mammut Crag Sender 9.0 mm x 70 m dry rope provides high levels of durability with exceptionally light weight.
- Sender construction optimizes durability and handling
- 70 m length allows extended leads and rappels on modern routes
- Dry treatment meets the UIAA standard for water repellency, absorbing just 1.5% of its weight in water even after surface abrasion, making the rope more durable
- Special heat treatments incorporated into the dry process increase the tenacity of the nylon fibers, making the rope much more abrasion resistant than a non-treated rope
- Ready-to-climb packaging improves handling of the rope
- Triple-certified for use as a single, half or twin rope
- bluesign® approved product means the company took deliberate steps to reduce negative impacts on the health of the environment, workers and users
Imported.
Best Use | Climbing |
---|---|
Rope Type | Single Rope Half Rope Twin Rope |
Rope Style | Dynamic |
Rope Length (m) | 70 meters |
Rope Diameter (mm) | 9 millimeters |
Impact Force | 8.5 kilonewtons |
Dynamic Elongation | 31 percent |
Static Elongation | 7.86 percent |
UIAA Falls | 5 to 6 |
Dry Treatment | Dry Core And Sheath |
Weight | 54 grams per meter |
Sustainability | Product meets the bluesign® criteria |
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very happy
I got this rope for the summer to use sport climging and trad climbing. I have had thinner ropes and thicker ropes and I really like this size. It handles super well and after a dozen pitches it seems to be very durable. I have used Mammut ropes for years becasue they last a long time and they feel great, and this is probably the best one yet.
That new rope smell
This rope is awesome! It has become the welcome third that my partner and I were looking for. After looking at other ropes for a while, I breached the subject with her. I said, "Hey, how would you feel if I introduced a new rope into our love life? You know, for climbing!" She gave me that smiling look of approval and we have been climbing to new heights ever since! After three weeks of desert climbing, it still looks clean(ish) and has supple handling. This is my fourth Mammut rope and I am always pleased with the durability, feel and Charmin-soft catches. Thank you Mammut, for everything!

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Versatile Climbing Rope

Go-To Rope
What I like is that it's super lightweight but durable. It's a really nice feel and easy to handle. I know I'll get a lot of use out of it through different seasons. Plus, I like the colors.
Small diameter, still great for cragging!
I was hesitant at first with how small the diameter is, but after using it a few times for cragging and alpine climbing it's has become my go to and only rope! It's light enough to pack in 10+ miles but still confident taking a fall on it. Could rock it as a twin rope if that floats your boat. Still fits in a grigri 2 and a petzl reverso. I don't think it works with the black diamond ATC but haven't tried it. Won't consider buying > 9.2 diameter again.

High Quality, light weight all around workhorse
I got this rope in the 100m length and cut it to use 40 m indoors and 60 outdoors. Super lightweight and feeds through any belay device with minimal resistance but still strong enough to catch heavy whippers. My favorite rope that I have used so far. I would recommend this to someone with more experience climbing as it could be somewhat off putting to climb with such a thin rope if you are new to climbing a d dont have any gear confidence.

Rope is quality and light. Also easier to clean than most ropes
I love it for long trad days because who needs the extra weight? I would use a thicker rope for sport though, just because it is thin and I do worry that it will get cut more easily by sharp or falling rocks. Easier to feed through ATC's, but you'd need to be more careful with your break hand. Might be a little big for my grigri, but I have the old one. I'm not sure if it feeds any differently through the newer models. If you happen to use a shunt, do note that the rope is too thin to only run it through the device once. I recommend this rope to trad climbers who would like a lighter rope for long days out, but not so much to sport climbers. I'm not sure about how well it would last through the constant beating. I took a point off for recommendations because it is really hard to find the mid point of the rope. I wanted a bi-pattern rope, but couldn't find one from Expert Voice.

Excellent high alpine rope! Took it on our climb of Grand Teton. In love with the quality of Mammut ropes so I don't think I will ever buy a different brand. The 9.0 was just a bit lighter and handled great. This rope stretches more than my 9.5, so I don't 100% recommend this diameter for everyday sport climbs but it is great for multipitch routes where weight matters.

Nice handling, thin rope
This rope handles really well immediately. Minimal pigtails and is nice and light to carry in. I bought this rope to replace a 9.8 and the difference is noticeable. Cannot comment on the durability yet, but I have used other Mammut ropes in the past and have never had an issue. Very happy with this purchase and would make it again.

Good rope but durability is less than I hoped
Overall, I would say this is a good rope considering how thin it is, but its durability at the ends is not what I would have hoped from a dry rope. It seems like the dry treatment wore off pretty quickly, especially at the ends. I have already had to chop significant portions off of both ends due to sketchy fuzziness and softness (70m rope becomes 53m). Within a couple of weeks of chopping, both ends are already soft and fuzzy again, so I will probably have to retire the rope soon. I think the main consideration is that it is a thin rope, and I have used it in a rough manner over a few months for developing and climbing. Don't get this rope as a workhorse rope for everything, especially if you climb in an area with abrasive rock because you will have to chop it after only a couple months of use. Get it if you want a rope you pull out every now and again as a light sending rope or something like that. I probably won't ever be buying less than 9.4mm for my uses anymore.
