They are not the fastest skis available since they are built for tricks instead of speed. The Head Black Jack 80 comes in four different lengths: 154, 163, 172, and 181. It has a radius of 19.1 at the 172 length and a sidecut of 112/79/106 at the 172 length. The pair of skis only comes in white and uses a HEAD Mojo 11 binding that comes in matt black and silver. The Head Black Jack 80 is not the most expensive pair of skis available, partially because they are not designed with experts in mind.