Tutorial: How to Install Wishbone Inserts in Your Latex Tubing

Tutorial: How to Install Wishbone Inserts in Your Latex Tubing

Posted by MAKO Spearguns on Jan 16th 2020

Step by step procedure for installing Wishbone Inserts in your Latex Tubing made by Primeline. We offer the best latex tubing for less.

In your MAKO Attack Pack Tool Kit you will need:

  • B) Food grade silicone
  • C) Measure tape
  • D) Pliers
  • F) Scissors
  • H) Lighter

You will also need:

NOTE: Bridle wishbones are to be used only with shafts with "Sharkfin Tabs" or shafts with "rounded notches". "Unrounded notched shafts" will cut through bridle wishbones.

WARNING: Some speros will file their notches to accept bridle wishbones, however this process weakens an already weaker shaft and increases the chance of a broken shaft.

MAKO Spearguns offers only high quality shafts with "Sharkfin Tabs" that are almost 50% stronger than notched spears.

tab 1

Sharkfin Tabbed Shafts

tab 1

Smooth Notch Shafts

tab 1

Sharp Notch Shafts

Spray rounded end of wishbone insert with food grade silicone and insert into tubing.


Use band tying line to tie a constrictor knot. Line up constrictor knot and use pliers to tighten know. YOU MUST PULL HARD! Then turn tubing over and tie a 2nd constrictor know on the back side of the tubing.

knot 1knot 2knot 3knot 4pull

Remove excess material and burn ends to prevent fraying


Measure and cut Dyneema wishbone material and burn ends to prevent from fraying. Then tie in to wishbone inserts.