How to replace the elastics at the bar ends of a universal freestyle wave bar?

1) Get an iron wire

Fold it in 2 parts

2) Unfold your kite lines completely, and wrap the back flying line with the elastic.

Move the elastic down to the bar end, just above the floater.

Munissez-vous d'un fil de fer et passez l'élastique autour de la pré-ligne

You will need to insert the folded part of the iron wire through the hole on the side of the floater (through which the elastic will come out) :

Approcher le fil de fer du trou à l'extérieur du flotteur

Insert the folded iron wire inside the side hole and make it come out, just above the bar end :

faire ressortir la partie coudée au dessus du flotteur

You need to grab the elastic with the iron wire:

pincer l'élastique avec le fil de fer

Make sure you grab the elastic in the middle, or close to the leader line, otherwise it may rip off the iron wire when you will pull it:

pincer l'élastique, vue zoomée

Once you have grabbed the elastic, pull the iron wire back out of the floater.

Then the elastic will follow:

Elastique ressorti

... You are done!