The wave washer is used to pre-load the bearings. It should be nearly, but not completely flat to properly pre-load the bearings. Use the included spindle spacers to add preload to the system and compress the wave washer. Be sure to torque the non-drive arm to spec after each arm removal.
Sram BB30 Wave Washer Kit
$12.89
The wave washer is used to pre-load the bearings. It should be nearly, but not completely flat to properly pre-load the bearings. Use the included spindle spacers to add preload to the system and compress the wave washer. Be sure to torque the non-drive arm to spec after each arm removal.
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