The Ultimate in Versatility? Triple Rated Ropes

© Toby Archer
In this review Toby Archer explores the versatile world of triple rated ropes, and reviews three alternatives from three of the biggest rope manufacturers. The triple rating means that each rope has been approved to work on its own (as a single rope), as one half of a double rope system, and as one half of a twin rope system. Before using these skinny ropes as singles, check how well your belay device handles them. Toby used a Black Diamond ATC Guide and Petzl Reverso 3 and found that both worked well, but always check the manufacturer's recommendations.

The 'twin' function is the least well-known: it's most often used in long alpine climbing, and winter climbing on fairly straight ice couloirs. You clip both ropes into every piece of protection, as opposed to just clipping one at a time. Conversely 'double' ropes aren't usually designed to be both clipped into the same piece of gear; doing so can increase the forces in the event of a fall. However twin ropes - and these triple-rated ropes - are designed and certified so that you can safely clip both.

Toby climbing Boršojohka, WI3+ Troms Norway. Leading on the Serenity and Swift  © Toby Archer
Toby climbing Boršojohka, WI3+ Troms Norway. Leading on the Serenity and Swift
© Toby Archer
Triple rated ropes are one of the most interesting developments in rope design in recent years. The new breed of ropes with multiple functions offers excellent versatility for all-round climbers. I don't climb on twin ropes, so the comments that follow are really based on using these ropes as both doubles and singles.

As an example of the ropes' versatility: with the grandparents looking after the kids for the day, my wife Elina and I headed into beautiful Shropshire. The morning was spent sport climbing in the sun at Llanmynech, and then in the afternoon I stood at the bottom of Red Square at Nesscliffe – ready to do battle on double ropes with a route I have wanted to do since getting my first guidebook twenty years ago. Some grunting, sweating and swearing later, I was grinning at the top, but very happy for having been able to pull up one rope on the sketchy clips while Elina watched me on the other. And all this with the same rope that had been used as a double for multi-pitch icefalls and a single for ski touring on glaciers in Arctic Norway just a few months earlier.

One world, one rope?

Well almost. For this review I have top-roped and worked sport climbs with these ropes, but clearly if you do this a lot, fatter single ropes will last better. If you are the type of climber who tries to onsight more than redpoint, or squeezes in the occasional day on bolts into an alpine holiday, the durability questions will be less of an issue. And if you want the lightest half rope available, then these will be too heavy. But for many Brits, one or more of these ropes might be the perfect solution.

Use it singly for mountaineering days; be that Amphitheatre Buttress on Craig Yr Ysfa, the Petit Aiguille Verte, or the Ledge Route on Ben Nevis. Then you also have a top quality half rope for big multipitch routes, be that some crumbly Culm Coast silliness, Scafell's impeccable rhyolite or Beinn Udlaidh ice. For shorter trad routes with big walk-ins such as some moorland grit, with just one of these ropes you have a single for straight up cracks (think Phoenix Climb) or doubled for where you need to wiggle about (Fairy Nuff). Indeed, it may be the average British weekend warrior, who does a bit of all sorts of climbing, doesn't fall off a huge amount and wants one rope that will work for the Highlands in January, Portland in May, Llanberis in July, Gritstone in October and Majorca in December who will get the most out of this class of rope.

Eärendel climbing on the Joker and Swift: Oikea Suora, WI4, Nuuksio, Finland


Out of the three ropes put forward for testing in this review, within the limitations described above, all worked great and it would be hard to pick a favourite. The Beal Joker is slightly fatter at 9.1 mm as opposed to 8.9 for the Edelrid Swift and Mammut Serenity. The increased diameter makes a little difference in weight; the Joker is 1 gram per metre heavier. That sounds like virtually nothing, so what real difference does it make? With a 60m rope, you could carry one extra super-light quickdraw extra for the same weight with the Mammut or Edelrid ropes. On the other hand, though, the increased diameter of the Joker makes it better suited for some belay devices as a single – for example the Edelrid Eddy is only rated for 9.0mm ropes upward.

Angelo Contessi trad climbing on the Edelrid Swift, Kauhala, Helsinki, Finland  © Toby Archer
Angelo Contessi trad climbing on the Edelrid Swift, Kauhala, Helsinki, Finland
© Toby Archer

Dry Treatment

After a lot of use ice climbing, it was noticeable that the dry treatment on the Swift and Joker was more effective than on the Serenity. All worked well on ice and snow, but when there was actual water about from puddles and dripping ice, the Mammut rope definitely got wetter.

Kinking, Coiling and Handling

All the ropes were unpacked carefully following the manufacturer's instructions. Mammut provided their rope pre-'lap coiled' meaning it should be good to go with minimal kinking problems straight from the bag. We were pretty impressed and thought this was maybe 75% successful – and after a few 'feed throughs' the rope has worked impeccably since. The Joker was very similar after carefully uncoiling it the traditional way with a new rope. (If you haven't uncoiled a new rope before see page 32 of this Beal guide for a Japanese manga girl in a helmet showing you how!) The Swift was uncoiled as new in a similar way, but is distinctly more inclined to kinking. This has declined with use but was a bit annoying to begin with. This might be connected to the fact that the Swift has a much firmer mantle; both the Serenity and Joker are reasonably soft in comparison.


Beal provided the Joker in a unicolour yellow that I thought looked fabulous through a winter of ice climbing, although dusty summer crags have significantly dimmed its cheery brightness. The Swift came in a colour scheme called 'Night' by Edelrid: black with a yellow fleck. While looking quite smart, I soon came to curse this for making the middle marker effectively invisible. A black middle marker on a black rope is just a bad idea. On big multi-pitch routes it causes real problems when the leader yells: “How much rope left?” and it is a hassle when abseiling using it on its own. I like the Swift, but I wouldn't recommend it in black for that reason alone.


The ropes do have slightly different performance statistics (see table). In use, and having taken falls on all three, I can't say I really notice the difference – all stopped me flying without a big jolt and that's enough for me.

Which would I choose?

Edelrid Swift  © Edelrid
Edelrid Swift
© Edelrid
Mammut Serenity  © Mammut
Mammut Serenity
© Mammut
Beal Joker  © Beal
Beal Joker
© Beal

If I was going to pick one rope out of the three it would probably be the Beal Joker, if only because its price (both the RRP and best price available if you shop around) is about 30 quid less than the Swift and Serenity. It is a touch heavier than the other two, but I could live with that for the money saved. If you want the absolutely lightest single rope available then either the Serenity or Swift are good bet. The ice climbers might notice the better dry treatment of the Swift, but many climbers might prefer the slightly softer handling of the Serenity. Overall, if you are willing to accept the possible loss of durability from using a thin rope in return for the huge versatility that these ropes provided, then really any of them will do you proud.

Summary Table

Single Double Twin RRP Link
Beal Joker slightly heavier £165 Joker
Impact Force 8.2 6 9.5
Number of falls 5 20 25
Weight/m 53
Mammut Serenity least efficient dry treatment £195 Serenity
Impact Force 9.5 7.1 10.4
Number of falls 5 to 6 18-20 20
Weight/m 52
Edelrid Swift more kink prone £190 Swift
Impact Force 8.8 6.7 10.4
Number of falls 5 22 22
Weight/m 52

Marmot Genesis softshell jacket: Toby ice climbing in North Wales  © Toby Archer

About Toby Archer

Toby Archer is based in Finland.

He describes himself as: "a writer and researcher specialising in international security politics; finally no longer a PhD student; hopeless but enthusiastic climber; part-time gear reviewer; keen multi-role cyclist; idealist and cynic"

Climbing keeps him from getting too depressed about politics. He blogs about both at:

Light from the North - chilled thoughts from the top of Europe.

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7 Sep, 2011
Strange thing i noticed. It seems the impact forces in all these ropes are much higher than the ones obtained with single ropes, and the number of falls till failure are smaller. (Cross-checking all Beal ropes in that linked catalogue). That means to me, that even though they have not spent big bucks getting the triple certification, you are better off using a single rope as a single, double, or twin in terms of safety both with regards forces in the system and rope longevity. The only advantage of the triple gimmick is one purely of weight when used as a single. Handy for sport climbing, but no so good when marginal protection is involved.
7 Sep, 2011
Well written review Toby. I am criticising the product here, not your writing. 20/30 years ago we all climbed on 9mm half ropes, many still do, these would at a push do all the jobs required. These manufacturers have reproduced old technology and charged a premium for it. I can see the advantage in a thin single/fat double but I cannot see a need for the rope to be rated as twin as well, just clip every others rather than all runners. Still, if folks are daft enough to buy it.
7 Sep, 2011
I can see the point in ropes being rated for both double and twin, or single and double useage but sinle and twin does seem kind of pointless to me.
7 Sep, 2011
Like I say, I've never really got the attraction of twins either (minimal weight perhaps?, but it does seem very popular with ice climbers in continental Europe, and to a less extent on multipitch sports routes. I guess that is why these ropes are triple rather than just double rated. I remember reading about Moon using a single half rope when doing the FA of Statement (IIRC) to save weight, but then at the time I guess he didn't weigh much more the 55 kg testing weight they use on half ropes!
7 Sep, 2011
A little higher yes, but not really "much higher". I notice the Joker is the same impact force as the 9.4 Stinger - their top of the range single. But I'm sure you're right, the designer have to make some compromises so that the rope is usable in the three different ways.
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