I use this binding on my K2 Super Stinx. What makes the installation tricky is that the K2's have pre-drilled screw holes with threaded inserts. Karhu in all its wisdom decided not to make the 7tm's mounting screws align with any of these holes. If you try to mount the 7tm's directly onto the skis, you'll rip out the inserts and ruin your sticks.

I made a video of the installation with the K2 adapter plates. The tutorial shows you exactly what you need and how it works works.

"Karhu 7tm Binding Installation on K2 Skis"

Explains and demonstrates the installation of the Karhu-Garmont 7TM Power Tour telemark boot binding on K2 Super Stinx skis with pre-drilled holes.