Look KEO BLADE Manual Del Usuario página 42

BOTTOM VIEW: SHIM - SOLE CONTACT
1: Shim body
2: Setting memory: This piece is screwed under the
shoe sole. It makes it possible to replace the shim
1
without having to re-do the adjustment. The new shim
is clipped on the setting memory (which remained
screwed under the sole when replacing the shim) to
take exactly the same position as the old shim.
2
Note: This function is only usable if you have a sole
equipped with the 4th specific oblong hole. If your sole
is not equipped, you can still mount the shim. In this
case it is essential to leave the memory clipped on
the shim.
42