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KingPin Weblock | For 20mm Webbings

(2 customer reviews)

25.00 60.00

The KingPin Weblock is high-tech solution for 20mm slackline webbings. It is super light, has a high breaking load efficiency and allows you to pre-tension the line.



KingPin Weblock | For 20mm webbing

The original SLACKTIVITY aluminium shackle – the KingPin – has been upgraded! The new KingPin is a super light weblock for 20mm slackline webbings. It the same advantages as a regular weblock, but with minimal weight and higher breaking load efficiency (as a knot or ChainLock method), plus having the option to pre-tension the webbing.

The webbing can be easily pulled to the side with manual pre-tensioning. With this release system, no softrelease is needed. But we recommend using a softRelease when using a HangOver pulley with a 3: 1 ratio, since the webbing can wear out over time during the release at higher sideways tensions.

The weblock unit, the KingPin body and the pin are connected with an elastic cord so that there are no loose parts that can be lost or separated. With usage, the rubber cord can wear out, but it can be easily replaced with a standard 2mm rubber cord.

Another small feature is the option to insert/thread a cord or a 2mm safety pin through the two holes in the side panels. This can safely prevent a misalignment in rodeo lines that are attached high in the trees (and when regular control of the weblock is not possible).

You can buy the full set or, if already have a KingPin, you can get only the weblock part.


  • Working Load Limit (WLL): 4kN, (from 17kN and above, slight deformation on the side plates)
  • For 19-20mm slacklines
  • BallLocking Pin (d = 11mm) made of high-alloy, rust-free stainless steel (17-4PH)
  • Made of aircraft aluminium 7075-T6 anodized in SLACKTIVITY green
  • Weblock unit: side plates made of stainless steel; centre divert with a halfmoon shape made of aircraft aluminium 7075-T6
  • Weight: 153g

Safety warning: The KingPin Weblock should not be used for highlining.

Before using the KingPin Weblock for 20mm webbing

Please read carefully and fully understand the operating instructions!! (PDF under “Manual (pdf)”). We provide you the necessary know-how and ins-and-outs of our materials. We have clear, simple and visually appealing operating instructions. Always slackline prepared! We have our own SLACKTIVITY YouTube channel – which offers many tutorials as well as video assembly instructions of our material and products. If you still have questions you can always contact us, we will be happy to answer you.

Reviews (2)

2 reviews for KingPin Weblock | For 20mm Webbings

  1. English

    Dwight (verified owner)

    Lightweight and easy to use

  2. English

    Anonymous (verified owner)

    Good device for rodeolines (with 20mm webbing)

Show only reviews in English (2)

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