I am regularly using the Click-Up belay device from Climbing Technologies together with a 40-meters rope from Edelrid I bought recently.

Now, after using the two only about 10 times together (always indoors) I noticed that there is abnormally strong wear on the rope but only on the second half, i.e. the part of the rope that is needed when lowering the climber.

Therefore, I am wondering if anybody else has observed something like this? Or whether it might be related to edges highlighted in the picture below? enter image description here

The edges don't seem to be extremely sharp but the only thing I can imagine that could cause this problem, in particular because when lowering the other climber and pushing the rope over to the left (so that it's running over the dark gray plastic part), I see pilling (from the rope) is collecting there.

Some additional information:

  • The rope is 9.8 mm in diameter (it's the Edelrid Freedom), so within the recommended range given by the manufacturer (8.6 - 10.5 mm).
  • There is some wear on the caribiner but it doesn't really have sharp edges.
  • My (very subjective) definition of "abnormally strong wear" is based on other people being surprised by the wear of my rope in comparison to theirs (made by different manufacturers and used with different belay devices), and on my feeling that after 10 times (some 30-40 hours) a rope shouldn't look like one long toothbrush...
  • We both are rather lightweight (~ 65 kg).

Here's some photos to illustrate what I mean:

  1. Part of the rope that shows strong wear Strong wear of rope (10x used)
  2. The first meters still look good as new (this is the same rope although the color seems different in the photos...) First meters still look as new
  3. The carabiner (which belongs to the Click-up and is a few years older than the rope) has some dents which could be related... Carabiner
  4. And finally, this is what is looks like after lowering somebody. enter image description here
  • 2
    How thick is you rope? Does it fit within the maximum requirements of the belay device? This device seems to go up to 10.5mm but typically I'd expect you'd want something more like in the 10mm max. Ensure your using the device 100% correctly. I've seen reports that state there is "a knack" to this device that is tricky to get 100% right. Make sure your pushing the "lock off" down enough, see the video here
    – user2766
    Oct 16, 2017 at 10:01
  • 3
    I can only say that this device is the default device of one (sizable) climbing gym in my region. They are "certified" (no idea what exactly that means, but they are part of the national organisation for climbing gyms which has a good reputation). That means their belay devices are in use with their ropes in their gym during their courses - from both an economical and safety standpoint it would be stupid to keep using it if it caused disproportionate amounts of wear.
    – imsodin
    Oct 16, 2017 at 10:31
  • 3
    Hi fuenfundachtzig, and welcome to TGO. When you say you notice abnormally strong wear on the rope, are you comparing it to another belay device you're familiar with?
    – Roflo
    Oct 16, 2017 at 16:22
  • 2
    You mentioned the comparison you have are different ropes: Does anyone use the same rope so you can compare with them? Otherwise I would strongly advice to show the rope to your seller, it is not unthinkable that this model is simply unsuited (whether by design or just quality wise) for indoor use.
    – imsodin
    Oct 16, 2017 at 20:49
  • 2
    Holy crab, those pictures put a different spin on this! Swap that biner ASAP. I would usually say that round dents aren't an issue, but when you see wear like this I wouldn't take the chance - a rope is so much more expensive than a biner. Then show this to the seller of the clickup. Not that there is any chance of this being on guarantee, but if he is competent and this is really due to the biner, he will recognise the problem immediately.
    – imsodin
    Oct 22, 2017 at 15:00

4 Answers 4


Any belay device will cause wear and tear on the rope since they work by applying friction to the rope.

There is a lot more friction when lowering a person than when belaying them so wear on that part of the rope is to be expected.

It’s pretty normal for the sheath to look fuzzy or have some tears in it, but if any tears expose the core, it’s time to put it out to pasture.


Its not uncommon for a rope to have pilling or to not look as nice after a lot of belaying. I have seen pilling pile up when lowering with a Gri Gri so it doesn't surprise me.

In summary this type of wear and tear is normal and probably not related to your specific device.

However, it would still probably be a good idea to ask an expert who can physically examine the rope and belay device. They should also be able to teach you how to check your gear.

If you wanted gear that will last longer, try a static as opposed to a dynamic rope and steel instead of aluminium caribiners and belay devices.

The only way of avoiding this type of wear and tear is to stop climbing :)

  • Totally agree and the following is mostly a reaction to the downvote than much new information: Regular use in the gym is one of the harshest "normal" things to do to a rope sheath. It is not only the belay device, also simple redirection at the top and contact to the walls contributes. Our training ropes (used up to 4 times a week) feel pretty used after only a month. If you know what is done with a rope, you can pretty easily determine whether it is still safe by inspection - but "learning" that should still be done "live" with someone experienced as Charlie wrote.
    – imsodin
    Oct 16, 2017 at 10:38
  • Maybe you should state the implicit conclusion (as to my reasoning, maybe I'm wrong) that rope wear is normal and probably not related to the particular device explicitly. As it stands if one is pedantic, you address the more general title question, not the more specific issues explained in the body about edges on this belay device.
    – imsodin
    Oct 16, 2017 at 10:42
  • 1
    @imsodinv Given time, any rope and or belay device will show that kind of wear. Unless the core of the rope is showing or the caribiner is grooved, its still probably good to go. Oct 22, 2017 at 20:06
  • 2
    Given time yes, but my ropes don't look like that after using them 10 times. The rope is safe indeed, but I assume it's handling has already deteriorated quite a bit.
    – imsodin
    Oct 22, 2017 at 21:11
  • 1
    @imsodin I once saw a similar wear on a brand-new rope and a Reverso (1st model). Someone told me it was common in some new ropes. I trusted him, but still decided to retire the reverso.
    – Roflo
    Oct 25, 2017 at 18:10

If the wear is indeed in the region which is mostly (only) in contact with the Click-Up, I'd double check the carabiner. Here the device is sold only together with its carabiner, to avoid mismatches which can cause increased wear, and reduce braking friction (so one part of the answer: in special cirumstances: yes it can). Is the carabiner original? Is is really without any edge?

I enjoy the company of a few people while training, who use a diversity of belaying devices (each their favourite, each for considerable time). There is no apparent difference in wear (that is my answer) for tubes (e.g. ATC), Click-Up (which is also considered a tube-like device) or grigri. There is considerable increase in rope twist when belaying with a munter hitch.

There is noticable wear around the region of redirection when top-roping on routes when the redirection point on the rope is around the same region for some time.

All of those people are deliberately using the rope from both ends (to even out the unavoidable wear and twisting).

Apart from wear through belaying and redirection I would also check whether the rope drags regularly over abrasive surfaces on the wall.


A friend just sent me a link to an article (unfortunately only available in German), which warns that the protective layer of the carabiner that comes with the Click-Up may delevop sharp edges, causing severe damage to the rope.

The pilling I observe on my rope looks pretty similar to what is shown in the photo there (although probably every rope with a lot of pilling looks like that), and it confirms my guess that the wear of the carabiner may have been at fault.


The Click-up is sold and must be used only with the supplied carabiner, with wear-resistant anodizing. I also read advertisements saying "special hard anodizing". So, Climbing Technology seems to be aware of this problem, in general.

The name given "click" sound is made when two metal items hit each other. Actually it does not surprise me, if the surface gets damaged and consequently wears the rope more compared to normal usage.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.