Light, snappy, and a whole lot of fun on the groomers, the K2 Disruption 78C is back for another year of front-side domination. While it’s not as damp, powerful, or heavy as the MTi or 82Ti, it has a lot to offer intermediate through expert skiers who value grip and quickness out of their skis. Built with an aspen veneer wood core, the skis also get K2’s Carbon I-Beam, Powerwall, and Dark Matter Damping in their tips. The 170 cm length produces a 15.6-meter turn radius, so these mid-range carvers love to be on edge and digging trenches through the corduroy. Slight tip rocker makes sense, but for the most part, these are fully-cambered skis that have zero camber to them. The end result is that you get very fluid edge contact from tip to tail, giving you a smooth and predictable turn shape from beginning to end.
ROCKER PROFILE
Camber
CORE MATERIALS
Dark Matter Damping
PREFERRED TERRAIN
Groomers, All Mountain
Nate Gardner brings his extensive technical skills to the test, so it’s great to hear what he has to say about a precise ski like the 78C. He skied the 177 and noted that it was a good size for short turns. He’d likely size up for a personal pair, but 177 is all you’re going to get out of the 78C. Nate scored it all 4’s and 5’s, with the 5’s going for torsional stiffness, edge hold, quickness, and maneuverability. 4’s for overall impression, versatility, forgiveness, playfulness, stability, and flotation round out an exemplary scorecard. Nate notes that the Disruption 78C “Really loves a short turn, but going long is not it’s favorite. But if you feel good getting your hip in the snow this might be the ski for you.” That shorter length, combined with the energy of the carbon makes a lot of sense for a ski like this.
Greg Petrics also skied the 177, noting that “The ski felt just right. I would say it is true to size. I would absolutely choose this length for myself, and I probably try to buy one!” That��s fantastic feedback just on the sizing portion of the test form! Greg, unsurprisingly, gave the ski 5’s out of 5 for overall impression, torsional stiffness, edge hold, forgiveness, playfulness, quickness, and maneuverability. We see a 4 for stability, and 2’s for versatility and flotation, which aren’t terribly surprising. Greg writes in his mini-novel that “The K2 Disruption 78C was the biggest surprise of the test for me. The K2 factory long ago closed down its World Cup racing department, and has become known for producing a lineup tilted towards the powder and park crowd. I frankly didn't even know they were attempting to put together a frontside piste carving lineup for the advanced intermediates and advanced skiers. The personality of this ski is that of a piste carver that simply wants you to have fun on every single turn. The weaknesses is that it has pulled out all the stops to make sure that you have fun piste carving, and the ski doesn't do much else besides piste carving. But I am A-OK with that. The carving profile of this ski was unlike anything else I skied. It frankly started out feeling a little lazy, and didn't provide the instant initiation of a World Cup race / race inspired ski. However, as soon as you get it up to speed, it stands strong and provides endless edge grip throughout the entire turn arc. Moreover, it somehow lets you adjust your turn radius from slalom on up to a wide GS, all the while always providing a stable edge hold. I'm frankly not really sure what sort of dark arts K2 has sprinkled into this ski (and I'm afraid to ask), but I absolutely loved this ski. If you're looking for a piste carver, and are normally eyeballing the usual World Cup factory offerings, give the K2 Disruption 78C a really close look. You won't regret it.”
It’s always nice to look a bit outside the box when we’re dealing with skis, and the Mindbender 78C is a perfect example of that. Grippy, quick, and a whole lot of fun, this is what front side skiing is all about.














