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Petzl Shunt Ascender

    Petzl Shunt Ascender

    • $69.95
    4
    (5)

    Item # 471161

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    The Petzl Shunt multi-purpose device is designed for ascending as well as a backup brake for rappelling, occasional self-belays, or top rope belays.

    • Will lock on single or identical double kernmantle ropes but not on braided ropes; fits single ropes from 10 - 11 mm and double ropes from 8 - 11 mm
    • Loads onto a rope without having to unclip; can be used as a back-up on descent or rappel when placed below the descender
    • A mechanical version of a Prusik hitch or Machard knot, the Shunt body must be held during usage on descent
    • Applies friction (braking) when device is released

    Please note: Petzl products can only be shipped to U.S. addresses.

    Imported.

    Item 471161

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    Petzl Shunt Ascender Specs
    Specification
    Description
    Best use
    Climbing
    188 grams
    8 - 11 millimeters
    Yes
    No
    Weight
    Fits rope sizes
    Suitable for belaying
    Suitable for rappelling

    Petzl Shunt Ascender Customer Reviews

    REVIEW SNAPSHOT®

    by PowerReviews
    Petzl Shunt Ascender
     
    3.6

    (based on 5 reviews)

    80%

    of respondents would recommend this to a friend.

    Pros

      Cons

        Best Uses

            • Reviewer Profile:
            • Avid adventurer (4)

          Reviewed by 5 customers

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          (6 of 6 customers found this review helpful)

           
          5.0

          My new best friend

          By DayneG

          from Bend OR

          About Me Avid Adventurer

          See all my reviews

          Pros

          • Clear Instructions
          • Easy To Pack
          • Effective
          • Simple To Use

          Cons

            Best Uses

            • For me Fixed lines

            Comments about Petzl Shunt Ascender:

            Dont be fooled by reviews from those who dont know what they're doing; this is a great device for top rope soloing. I have already completed hundreds of lines on this device (from 5.8 to 5.12c) and find no real issue as long as one knows what theyre doing. In one review someone states that its "feeds rope difficultly", this is only a problem if you dont know how to fix line; after setting up the rope, stuff remainig rope into bag, tie it off (overhand) so that rope bag is hanging about a foot or so off the ground. This provides adequate wieght to insure feeding will never be an issue. I personally (I dont reccomend this)rarely back it up but if i do (generally on easy slabs where i could fall flat on the device) with overhand knotts between me and ground(if situation to do so presents itself) or usually with a prussik loop (note to newbies; a lot of sharma lovers and REI coulpes will tell ya its not safe, i however find it next to bp). NOTE; if you doubt the safety of top rope soloing, its probably not for you. I do not 'reccomend' it to anyone. Dont use the rope shearing devices like the BASIC or MINITRAXION, they are harsh on youre rope and i personally have sheared the sheath of an 'old' rope of mine whilst taking a nasty spill on a traxion while training on my buddys wall.

            • Gift:
            • No
            • What Is Your Gear Style:
            • Minimalist

            Comment on this review

            (5 of 7 customers found this review helpful)

             
            2.0

            Limited use

            By CKL

            from New Mexico

            About Me Avid Adventurer

            See all my reviews

            Site Member

            Pros

              Cons

                Best Uses

                  Comments about Petzl Shunt Ascender:

                  If you're looking for something to use for top rope self-belaying, look at the Petzl Basic. I've tried it with this device and feeding rope through required both hands at some points. Also, be sure not to grab the device if you fall, or device will not lock-up. While weighted, it's a bit difficult to unlock, too. Unless you're doing LOTS of rappelling, I would rather use a prusik for backup because of it's lighter weight.

                  The main Pro for this device is that it can be easily slid up or down the rope. Most other ascending devices slide up fine, but need to be undone to slide back down.

                  Comment on this review

                  (4 of 4 customers found this review helpful)

                   
                  4.0

                  very handy

                  By sirvival

                  from Mexico

                  About Me Avid Adventurer

                  See all my reviews

                  Site Member

                  Pros

                  • No damage to rope
                  • Up and down easily

                  Cons

                    Best Uses

                    • Ascender
                    • Backup brake
                    • Self Belay

                    Comments about Petzl Shunt Ascender:

                    I use it for self belaying but the trick is to add something as a chest harness to mantain the shunt the highest possible, and to add some weight to the end of the rope, that way the rope feeds smoothly trough the shunt, no hands needed. Also is very safe as a backup brake for rappelling.

                    • What Is Your Gear Style:
                    • Minimalist

                    Comment on this review

                    (3 of 3 customers found this review helpful)

                     
                    4.0

                    Smooth feeding with minimal wear on rope

                    By jt99

                    from Portland, OR

                    About Me Avid Adventurer

                    See all my reviews

                    Site Member

                    Pros

                    • Effective
                    • Simple To Use

                    Cons

                      Best Uses

                      • Self Belay

                      Comments about Petzl Shunt Ascender:

                      This device works great for self belay top-roping and since it uses constriction of the rope as its form of braking, it puts minimal wear on the rope (compared to ascenders with tiny teeth). Just be sure to weight the rope, either by winding the coiled rope up onto itself or tying a sandfilled milk jug to it, this way the device slides easily up the rope with you and locks off solidly. The included instructions diagram well how to use.

                      Comment on this review

                       
                      3.0

                      Great for long rappels

                      By blackbelt backpacker

                      from San Diego

                      About Me Casual/ Recreational

                      See all my reviews

                      Site Member

                      Pros

                      • Great for rappels

                      Cons

                      • Heavy

                      Best Uses

                      • Long rappels

                      Comments about Petzl Shunt Ascender:

                      This device is best used on long rappels as a backup where a nylon prussic has a risk of fusing to the rope from the heat. It works great for this use. For top rope soloing, it has some use, however limited. It can't be used on overhangs and won't lock off if you fall on it or grab it in a fall. If you need to back off the climb, bring a prussic and strap for a foot loop to get up the rock or unweight the Shunt (if you carried a backup belay/rappel device). Otherwise, you can get stuck. If you take a fall, or stop to rest, expect to lose about at least a foot of progress as the carabiner rotates and the device locks off. The Shunt basically trails you as you climb. Weighting the rope works well on short climbs. However, on long climbs, the rope stretches too much and any weight lowers to the ground. If the weight lowers to the ground, the shunt stops sliding up the rope easily and climbing can become unsafe. For use in a 3 to 1 haul system in place of a prussic or teethed ascender, the device is a pain to get to work as it slips before locking off, limiting progress capture. It also doesn't unlock easily to slide up in a haul system either. I don't recommend using it in a haul system. A prussic works much better. Overall, it's a useful piece of gear, but you need to know its limitations and plan accordingly.

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