ICS Compression Kit

Utilise this kit to ensure harmony between your bar and fork.

This Compression Kit includes a star nut and bolt.
Fits forks without threads and guarantees a stable fit with a threadless headset.

The star nut is inserted inside the bar (on District bars, a starnut is factory-installed inside; you will still require the bolt). Then, mount the bolt from bottom to top in the fork's top with a long allen key.
Also check out this instruction video

Designed for District forks, although fitting other brands is possible.
Please note: Does not fit Blunt Envy forks as they require a very long bolt (you can resolve this by purchasing a 300 mm long 6mm threaded rod and a few nuts, and using this in conjunction with the District star nut)