COSMIC

Hi! Does the 50 meter longline kit come with webbing that has 2 sewn loops? Thanks! SIGMA is an element of statistical calculations, which allows to display a products’ guaranteed strength value throughout its manufacturing process. Therefore, it is related to product safety.  

During the testing process, the greater the differences between the 10 recorded values, the higher turns out the sigma value.

For example, for 10 carabiners tested, their ten recorded values are usually different and not the exact same:

24,9 | 25,9 | 26,2 | 25,6 | 25,8 | 24,7 | 25,5 | 24,7 | 26,0 | 25,7 kN

So which value to take into account to display the MBS (Minimum Breaking Strength) value? 

We first calculate the average:

(24,9 + 25,9 + 26,2 + 25,6 + 25,8 + 24,7 + 25,5 + 24,7 + 26,0 + 25,7) / 10 = 25,5 kN

We then calculate the variance:

24,9 - 25,5 = - 0,6    (-0,6)2 = 0,36

25,9 - 25,5 = - 0,4    ( 0,4)2 = 0,16

...and so on for the 10 measured values.

We add those 10 results:

0,36 + 0,16 + 0,49 + 0,01 + 0,09 + 0,64 + 0,064 + 0,25 + 0,04 = 2,68

And we create the average:

2,68 / 10 = 0,268

The variance is even to : 0,268

SIGMA (standard deviation) = square root of 0,268 = 0,5176

The maximum value displayed on the carabiner would be:

average of 10 carabiners = 25,5 kN

SIGMA = - 0,5176

____________________________

Displayed Value = 24,0724 kN

What you should know in particular about the 3 SIGMA safety margin? 

We use the 3 SIGMA method to calculate the MBS. 

We multiply the SIGMA for 3 (this is why it is called “3 SIGMA”) to boost the prudency in the MBS calculation.

Taking the 10 previous carabiners as an example:

The average of those 10 carabieners is 25,5kN

3 SIGMA (3 x 0,5176) = - 1,5528

_____________________________

Displayed value = 23,0472 kN

Our choice aims to maximize the safety of our users while using our products.  

Source @Petzl

Yes, the 25-mm (1 inch) Slackline is more challenging than the 50-mm (2 inches) one.

The first provides a greater contact surface, therefore it’s more suitable for a beginner. For long distances (more than 30 m), however, only the 25-mm lines are suitable for walking. This narrow webbing allows you to have a greater sensitivity. In fact, thanks to the reduced thickness (just 1 inch) the foot comes out slightly from the edges of the line, and force you to position better on it.

Expert tip

Before ordering the webbing, it’s necessary to consider the use and the need. A beginner who does not walk long distances, would walk better on a 50-mm (2 inches) line. On the contrary, the 25-mm (1 inch) line will be more suitable for an expert longliner.

Remember that anchoring to trees, poles and other fixed points, are subjected to a different strength depending on where Slackline run its strength. The higher you'll position the webbing, the stronger the force exerted on tree. The diameter of the support (e.g. the tree) must therefore be chosen considering these three factors: the length of the line, the height at which the same is located and the power depending on the weight and the movements of the slackliners. Minimum diameter is 30 cm.

Expert tip

We suggests using eco-friendly tree protection to avoid excessive pressure on the tree and protect the bark. If you do not have trees with a diameter larger than 30 cm, you should set the line as close as possible to the base of the tree trunk. Then use the appropriate stands to lift the Slackline. In this way, it will reduce greatly the force applied on the tree.

Sure: Slackline is made of high tenacity polyester and provides excellent resistance: up to 1,500 kg of working load! The resistance of the webbing is fundamental: we want to ensure the safety of our slackliners. In this way, we guarantee resistance even for the most extreme tricks and jumps on the line.

Expert tip

Do you want more information on the security systems designed for slackline? Check the BACKUP KIT page in our website.

Before you set up your Slackline, it is good to check if you must replace your webbing: you should consider the frequency of use. With regular use (once a week), the Slackline should be replaced after 1 year. The life of the webbing depends on several factors: the use (or misuse), the contact with water (especially if salted water), the exposure to the sun, the atmospheric agents, the temperature, the dust and the dirt. If your webbing has abrasions greater than 2 mm, you must replace it immediately. When you don’t use your Slackline, keep it clean, in a dark and dry place.

Expert tip

It’s fundamental, when you learn how to mount a slackline, to check the correct wrapping of the webbing into the ratchet roll. It is equally important that the line does not rub against trees, rocks, etc. Therefore, we recommend you to use always the tree protections.

Our Slacklines webbing are all washable. To clean your Slackline just soak in warm water with a bit of soap (a not aggressive one), leaving aside for about one hour; after that, you will need to rinse it well under running water. Expert tip Do not put it in the washing machine with the spinning: there’s the risk to ruin the rubber printed on the surface. Do not dry your Slackline in the sun.

Slacklining is a growing sport, especially in recent years. The advice is to look for your town’s Social network Slackline group and find the nearest Slackline’s community! There are slackliners of all kinds and experience: you will enjoy practicing in group!

The idea behind this discipline is very stimulating: walking on a "rope", keeping balance as long as possible. Anyone who saw that in a park or in a movie just thought "I wonder if I could do that". You can find several benefits in Slackline, both physical and mental: on one hand it is a very healthy physical activity and useful to train the body and improve the core stability; on the other hand, it improves the concentration. Expert tip Visit our website’s page COMMUNITY or drop us an email on ABOUT US and find out how many benefit you can get from slacklining!

We created a specific exercise program to start practicing Slacklining safely and correctly. Check our website’s page “COMMUNITY” or drop us an email on ABOUT US to get the Slackline EXCERCISES BROCHURE, useful to how to start training. Don’t miss our tutorial VIDEOS.

There are ,any initiatives of local associations, Slacklining is a discipline in growth and evolution. Find an association near to you! Remember to search on Social network the closest Slackline’s group to your area. Make your experience unique, together with other enthusiastic slackliners like you!

Yes, you can fix the rope between two trees without affecting the anchor. The Slackline always applies a high pressure on the anchor point (trees or other fixed points used); we recommend, therefore, to always check on them before using the Slackline. If you have doubts about their strength, it is always better to fix the Slackline at their base (of a tree or pole) and lift the line with one of our frame stands: in this way, with a simple lever, you will reduce much of the force of the Slackline. Expert tip If you see a minimum risk in installing a webbing between two trees (or other support), it is always better to avoid that set up. In that case, you can anchor to the ground through our OUTDOOR KIT No-Trees, rather than risk incurring in damages or injuries.

The Slackline and Trickline BACKUP system it’s a static rope that ties the ratchet to anchor and doesn’t involve any tension. It is a professional security system: it eliminates any possibility of "eject" of the metal parts in case of accidental collapse of the system. Expert tip Always use the BACKUP Kit, to make secure your Slackline and Trickline during your tricklining.

Using two ratchets, you can tension up to 50 m. The right Longline Kit for this is Fly Line 50 m. Discover other Longline Kits and the rest of the equipment, available in the dedicated section of our website. You will find the perfect line you are looking for, and all the useful complementary accessories!

You must use a pulley system in longlining: the pulley system ensures you high power of tensioning for greater lengths. The ratchet used for Slacklines and Tricklines isn’t suitable for longlining over 50 m. Expert tip Find the pulley system suitable for your needs, by visiting our website section.

If you prefer not to have pulleys in your Longline Slackline setup, we recommend you use the MOUSEGRIP along with a second tree sling. Expert tip Add a Longline SOFT RELEASE to detention your Longline webbing at the end of the training.

Absolutely yes: longlining on a double webbing setup is a great workout! Heavier your slack (g/m) will be, the more efforts you’ll need to control its oscillation. Expert tip We have wide range of Longline webbings to choose the right one for you, each with different features, JUMBO line is a very heavy one :)

To play the Rodeo, there is not a specific Slackline webbing. It is sufficient to choose aconfortable line with a low elasticity: an example is the Joker Line. Expert tip Change as much as possible the type of line you use: only in this way your Slackline skills will improve significantly!

Most of the longline webbing are made of polyester: this because it is easier to tension. On the other hand, the nylon lines are much more elastic: at the same tension, nylon stretches up to 50% more than the polyester! Expert tip For a better use of a nylon Longline, use them over a land with depressions; the nylon webbing has a greater bounce than polyester. They are good, to practice highlining and waterlining: limit the stress on the anchors and reduce the risk of cuts and abrasions.

A Highline set up CAN NEVER BE DONE WITHOUT THE HELP OF AN EXPERT HIGHLINER or expert mountain guide. Remember the high risks related to the Highline. Discover all professional Spider safety tools for highlining!

First of all, check in the Slackline Highline Community of your city: you will know the meeting places and you’ll have the chance to train with other people. If you can’t find a local guide, contact us: we will help you with further researches.

No, the Slackline ratchet is not suitable for highlining. Use always the Highline equipment! In fact, the ratchet could suddenly open if used in highlining conditions, with very dangerous consequences, including death. Expert tip Use only gear that are specifically indicated for the use in Highline.

ABSOLUTELY DO NOT USE A COMMON CARABINER: it is not designed to work in the highlining conditions and it’s not suitable for Highline. In fact, the carabiner nuts and gate would risk to break the line: the consequences could be tragic and fatal! Use only specific highlining equipment in the highlining section of our website are the safe solution to practice highlining!