This kit comes with everything you need to mount most 12x142mm through axle bikes on your KICKR SNAP. It includes 3 sizes, M12 x 1.75 Coarse, M12 x 1.5 Medium and M12 x 1.0 Fine and the end cap.
Note: This is for 12x142mm bikes only. Not compatible with 12x135, 12x150, or any other through axle system.