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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30
smooth and robust CenterLine rotor
the question was not about carbon
4 compounds in the tread (4C) for increased wear life
with a larger C-shape
Shimano Dura-Ace FC-R9200 12 Speed Chainring Size:52t smooth and robust CenterLine rotorWith their special tooth profiles, mount pins and climbing aids, Shimano Dura Ace FC R9200 12 Speed Chainrings enable a particularly smooth and fast shifting process. Shifting under load, as one would otherwise only expect from a rear derailleur, is possible without issue. The carbon fiber reinforced plastic construction with aluminum teeth helps keep weight down while increasing torsional rigidity, and the Hollowglide profile of the large chainrings
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