Kästle’s FX line is all about precision. The 104 is a tool best suited for freeski adventures where the slightest loss of control might have dire consequences. Developed with the guidance of Chris Davenport, this ski meets the highest standards of performance. One tester praised the FX 104 as “stiff, stable, precise—a ski for those who want to work hard.” Another tester asserted that it’s “built for true skiers. This ski has crazy energy if you want to push it.” Combining lightweight core construction and substantial sidecut (wide in the tip and tail, and quite narrow underfoot), it’s ideal for the aggressive skier who’s looking to push the boundaries.