Used in Certain Applications on the Spindle Between the Drive Side Crank Arm and Bearing. Used mostly in SRAM "GXP" bottom bracket applications. Critical for press fit GXP applications such as BB86 and BB92 to help keep the drive side press fit cup in the bottom bracket shell. Also used in threaded outboard GXP bottom brackets to keep the drive side seal in place.

NOTE: For Enduro XD-15 Angular Contact applications, "nest" two wave washers together.