Wahoo KICKR AXIS feet. Bringing natural movement to the legendary KICKR Smart Trainer. If youre spinning a small gear or smashing out the big watts, the Kickr Axis feet let all bike riders customise the ride feel, enhance feedback & create a more realistic training setup by providing up to 5 degrees of side-to-side movement. KICKR AXIS feet enhance natural movement on the bike by minimizing pressure touchpoints, reducing fatigue & allowing you to train for longer. KICKR AXIS comes with three stiffness options, easy, medium, & hard. Theyre easy to install & alternate between stiffness options when you are looking to modify your ride feel.