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  • Petzl - Tibloc Ultralight Emergency Ascender - One Color

Petzl Tibloc Ultralight Emergency Ascender

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    30 Reviews


    Serves many purposes and adds very little weight.

    The Petzl Tibloc Ultralight Ascender serves so many purposes that it has a place on nearly any long rock climb, aid climb, or alpine climb. Pair this simple 1.4-ounce ascender with an oval-stock carabiner to create a self-locking pulley for bag hauling, crevasse rescue, or aiding a partner up a pitch. It can also be used as an ascender if you need to climb a rope to free a rappel or just can't follow a burly pitch. The Petzl Tibloc Ultralight Ascender also serves a multitude of uses in self-rescue situations.
    • Aggressive teeth work on snowy and icy ropes
    • Pair with a Petzl Ultralegere Pulley for an ultralight emergency haul kit
    • Note: use only on round-stock carabiners
    • Item #PTZ0171

    Tech Specs

    Body Material
    Cam Material
    Rope Diameter
    8 - 11mm
    Claimed Weight
    Recommended Use
    rock climbing, aid climbing, glacier travel, mountaineering, crevasse rescue, self-belay
    Manufacturer Warranty
    3 years

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    always good to have!

    • Familiarity: I've used it once or twice and have initial impressions

    this is not my favorite ascender, but i cant fight the size/weight of it. i keep it just in case. ive used once or twice and works great, its easy to use and it weighs next to nothing. a good piece to keep around!

    Light and Functional

      Haven't yet *really* used it, as it is emergency kit, but...

      It's super light, easy to get on the rope, and worked easily for me every time I've tested it. The aggressive teeth mean that it's not something I'll use unless I really need to, but seems like they would be ideal for biting into a skinny, icy glacier rope that prusiks might slip off of.

      Key Word: Emergency

        The Tibloc is a brilliant little piece of gear, but it should be used for emergencies, not everyday ascending. As others have noted, the teeth are aggressive and will tear up ropes, but for a rare emergency ascent here and there, this shouldn't be a problem.

        Great for what it is, but can eat ropes

        • Familiarity: I've used it several times

        I think this is close to 'mandatory' in terms of gear for climbing. While not strictly necessary, the fact that it is so light, and yet is still effective as an ascender, progress capture, etc means there's no reason not to bring it.

        I'd watch out for a few things though

        - make sure it's set on the rope before you weight it, or you can strip the sheath pretty badly

        - add a small loop of 2/3mm cord and attach to a carabiner dropping things sucks, and this for some reason is easy to drop.

        - don't use ultra-lightweight carabiners for it, or it doesn't always lock up properly.

        Petzl Tibloc and Petzl Attache

          I think you have to combine the two if you are going to purchase a Tibloc.

          The fattest carabiner I have is the Attache it works great with the Tibloc. My Tibloc is stored on my Attache so they are kinda like a pair that never get separated.

          So simple yet it works so well.

          39 grams that could save your life

          • Familiarity: I've put it through the wringer

          This is the best piece of "oh shit" gear ever. With something so small, light and applicable I wouldn't go down a technical canyon without it. I originally bought this for my decent of neon canyon, but will begin to bring it along on my climbing adventures as well. With such compact device there is no reason not to bring it along. I haven't needed to use this, and have only practiced using it. Hopefully it can stay that way, regardless I felt much better about dropping into a keeper pothole in Neon canyon with this in my pack. We managed to get out with a submerged partner assist in black murky water, but had that failed it would have been nice to have a way out. My advice, keep this beauty on you.

          39 grams that could save your life

          Must Have - Every Climber, Every Time

          • Familiarity: I've put it through the wringer

          This is one of those pieces of gear you should ALWAYS HAVE WITH YOU. Sure, you hope to not need it. Sure, you can and should use prusiks. But when you absolutely DO need it, there is no replacement for the tibloc - it makes rescue easier and faster, which translates into safer.

          Get one, learn how to use it, and always take it with you.

          Fantastic Piece of Kit

          • Familiarity: I've put it through the wringer

          Lightweight always makes the cut onto your rack. Works great paired up with the oscillante pulley for rescue work or progress capture haul system. Sweet rescue ascender that grips faster than a prussic and alot lighter than a set of jumars. Expensive for what you get, but that describes climbing gear in general.

          Never leave home without it

            I always keep this on an Attach? with a prusik loop for emergency ascending. It's an absolutely crucial piece of gear for canyoneering, and it's so light and durable you never have to think about it until you need it. Like others have said, make sure to attach a piece of accessory cord to keep from losing it, and always use a thicker biner to keep from trashing your rope.


            • Familiarity: I've put it through the wringer

            This is a great piece of gear, small,light and useful. Be careful and make sure you set the biner lightly and make sure it can't move before you weight it. I have trashed one rope and learned my lesson. Keep an eye on it, and its good to go.


            It's always best to use a thicker bar stock type locking carabiner such as the Petzl Attache with the Tibloc. This will ensure maximum "bite" into the rope, and minimize slippage like you are experiencing.


            Even with a full size biner (I had the BD rock lock in it which is the same size or bigger than the Attache) if its not set properly or pulled at a funny angle or if the Tibloc rotates on the biner then it will shred ropes. Its useful to keep your thumb on it when you are moving it up the rope to keep it in the same spot.

            Little but useful

            • Familiarity: I've used it once or twice and have initial impressions

            We were glad we had one of these in all of our gear this winter when we needed to make a Z-drag system to haul one of our party members up a 60 meter waterfall.


            • Familiarity: I've used it once or twice and have initial impressions

            So light and useful! Very nice piece of gear to keep on the harness, especially in alpine/glacier terrain. much quicker, and easier than prusiks.

            Lightweight and Very Useful

            • Familiarity: I've used it several times

            This product does exactly what its intended to do. Its so light I usually keep one on my harness with a few other things that round out the "oh crap biner". We used them to ascend fix lines, I see where the handled ascender would be a little nicer but these worked just fine.

            Worth it -

            • Familiarity: I've used it once or twice and have initial impressions

            For the weight? Space? Cost? for what it provides? I agree that it is essential kit. This combined with a microtraxion and a pulley is SO useful . Sure - you may not need it - but when you do...

            And also agreed. These are not ascenders for regular duty. If I never have to use them then that's a good thing. I still carry them though.. Thats a smart thing.

            Malan's Waterfall in Waterfall Canyon, Ogden, UT 9-3-11

            These things are crazy expensive for what they are, but are super useful to have! I keep them on my harness when canyoneeing just in case the rope doesn't touch the ground and I have to climb back up. If the rope gets stuck on the pull I can easily go back up without hauling heavy ascenders with me everywhere, to help get a grip on the rope when pulling it, and for use in pothole escape with some aiders! They are super lightweight and work well!

            I've ordered this item and the image on the site is not for the tibloc, but the tibloc 2. Can you please update the image to reflect the original tibloc?

            What diameter cord fits in the lanyard?

            What diameter cord fits in the lanyard?

            This little ascender looks like it has...

            This little ascender looks like it has some pretty aggressive teeth. Will this tear up the outside of my rope, the real application I'm looking for is using it in crevasse rescue

            Best Answer

            The teeth on the Tibloc are fairly aggressive yes. However, if used *correctly*, you're fairly unlikely to see damage to your rope sheath, unless you're using it all the time (as any ascender will damage the rope over time).
            The damage usually happens when the rope slips through the tibloc, so it tears the rope as it goes. Just make sure the tibloc has got a good solid 'bite' into the rope and it shouldn't slip.

            The best bet is to practice using it.

            Also, even in the worst case scenario, a damaged sheath is a small price to pay for getting your mate out of a crevasse.