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Mammut Infinity Rope vs. Mammut Crag Rope

Original Post
Ann H · · Unknown Hometown · Joined Apr 2016 · Points: 5

I am looking into getting my first rope, and have heard a lot of good things about the Mammut Infinity. I want a rope that is dry treated, and bi pattern. I also want to purchase it from REI as I have dividend money, and want to take advantage of their current sale. However, REI does not sell the Infinity in the bi pattern, but they do sell the Mammut Crag dry treated and bi patterned. Aside from appearance, and the fact that the Crag seems to be a little bit stretchier, I cannot find any difference between these two ropes. Does anyone know any additional details about how these two ropes differ, and why one would choose the Infinity over the Crag? What about these two in comparison to the Mammut Alpine? I am looking at the 9.5 mm diameter, incase there is variation within each model.

Thanks!!!

James J · · UT · Joined Aug 2019 · Points: 19

Mammut changed the names and reorganized their rope collection in 2020. As far as I am aware, there is no more Infinity. It has been renamed. Some more info here: Best I can tell, the 9.5 Alpine Dry or the 9.5 Crag Dry is the equivalent to the Infinity. To make matters even more confusing, there is a second product listing for the 9.5 Crag Dry.

From the product 9.5 Alpine Dry's description:

The rope is based on MAMMUT’s best-selling Infinity, known for its perfect balance of diameter, weight and handling.

From the 9.5 Crag Dry's description:
The 9.5 Crag Dry Rope incorporates the proven properties of our best-selling MAMMUT Infinity rope with a perfect balance of small diameter, low weight and high performance.

I can't tell the two ropes apart based on the specs on the Mammut product pages.

I imagine someone else knows more.
IJMayer · · Guemes Island, WA · Joined Jan 2011 · Points: 350

mammut infinity is a good cheap rope. i bought one on REI cuz they're super cheap. it's my second of the model. you'll get a few seasons of rock climbing out of it which is what they're for! 

chris p · · Meriden, CT · Joined Oct 2018 · Points: 556
James J wrote: Mammut changed the names and reorganized their rope collection in 2020. As far as I am aware, there is no more Infinity. It has been renamed. Some more info here: 

Helpful video. It kinda makes sense, but it's also annoying for those who already have a preferred mammut rope that now doesn't exist anymore. 

chris p · · Meriden, CT · Joined Oct 2018 · Points: 556

Looking around on their website, it seems like they don't have bipattern ropes without dry treatment. Is that new?

chris p · · Meriden, CT · Joined Oct 2018 · Points: 556
Ann Hill wrote: I am looking into getting my first rope, and have heard a lot of good things about the Mammut Infinity. I want a rope that is dry treated, and bi pattern. I also want to purchase it from REI as I have dividend money, and want to take advantage of their current sale. However, REI does not sell the Infinity in the bi pattern, but they do sell the Mammut Crag dry treated and bi patterned. Aside from appearance, and the fact that the Crag seems to be a little bit stretchier, I cannot find any difference between these two ropes. Does anyone know any additional details about how these two ropes differ, and why one would choose the Infinity over the Crag? What about these two in comparison to the Mammut Alpine? I am looking at the 9.5 mm diameter, incase there is variation within each model.

Thanks!!!

What kind of climbing do you plan to do? For your first rope, probably just get one that's cheap and don't worry about bi pattern or dry treated. Rei has the 9.5 infinity 70m for 150 in non-dry. I don't really think dry treating is necessary unless you're doing alpine climbing or ice climbing, in those cases it's mostly to prevent the rope from getting wet then freezing if I understand correctly. 

petzl logic · · Unknown Hometown · Joined Aug 2013 · Points: 730

dry treated rope lasts longer. all the other stuff doesn’t matter. 

Brandon Ribblett · · The road · Joined Mar 2016 · Points: 80

I wouldn't worry about getting a dry treated tope or a bi pattern as your first rope it's going to get thrashed and doesn't need to be high end. I also bought a dry treated rope and regret spending the money.

Mammut 9.8 would be perfect for you. 

Sirius · · Oakland, CA · Joined Nov 2003 · Points: 660

I'm super wary of "features" that cause products to be more expensive but don't enhance utility.

Bi-pattern ropes are not in this category. Especially if you're going to be doing multi-pitch rapels, bi-pattern will make you safer. Given the percentage of climbing deaths that are related to rapping, does anyone dispute that?

Why tell a new climber to skip bi-pattern? If you can afford it, I'd say it's worth it.

petzl logic · · Unknown Hometown · Joined Aug 2013 · Points: 730

does a bipattern rope tie knots in the ends for you? 

M Irving · · Unknown Hometown · Joined Dec 2009 · Points: 0

For a first rope I would go a little bigger than 9.5.  You'll probably be doing everything from top roping to leading/multi-pitch at some point and you'll get better longevity with a thicker rope.  If you're just going to be mostly single pitch toproping then I wouldn't worry about bi-pattern and dry features but if you're planning on moving past that into multi-pitch then I would definitely pay the extra amount for both of those features.  Currently, there's a screaming good deal at REI for a rope that might be what you're looking for:

  rei.com/rei-garage/product/…

Subtotal$185.38Coupon appliedMEMPERKS2020Standard shippingFree Estimated taxes $17.61Order total$202.99

Expires 4-6

Jonathan Bright · · Huntington, NY · Joined Feb 2018 · Points: 250
petzl logic wrote: does a bipattern rope tie knots in the ends for you? 

No but it saves a lot of time vs the Infinity Classic which just has an always-faded middle mark that I never see going past...

Guideline #1: Don't be a jerk.

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