10 millimeter shim kits fit 07 and newer KTM 530, 690 and 990 motors. These kits are expertly manufactured to OEM specifications with optimum materials. To ensure long service life, each shim is heat treated and precision ground to exact sizes. The perfect complement to Wiseco's complete line of valve train components. 10.0 millimeter outer diameter valve shim kit contains 5 of each 47 different thicknesses.