Here is the lightest deck in the world: Pandemonium V2. The very first deck to stay under the Kilo.
It's a high-end deck (or work of art), 9 years after v1 it has evolved a lot.

Created and studied from every angle to achieve the ultimate in lightness.
Wider, lighter, more resistant and available in 3 sizes: 46, 50 and 54cm.

Hundreds of hours of simulations were carried out to obtain the most efficient geometry possible, giving it 29% more resistance to the banana effect, as well as 40% more resistance on the neck.
Made from 6082 aluminum (slightly stronger than usual 6061).

Concave: Radius 800

This deck also sees the arrival of a new Torx axle, stronger and more practical.