It's a known issue, unfortunately. The carbon carriers creak and sometimes break where the cogs are riveted. Keep an eye on yours for cracks.
Dura Ace 9000 11 speed cassette- rubish product design - Weight Weenies
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Originally Posted by
chandltp
There's no such thing as too far.. just lack of time
Originally Posted by noglider
People in this forum are not typical.
RUSA #7498