Shimano Dura-Ace FC-R9200 12 Speed Chainring Road despite being narrower than the

despite being narrower than the latter

TENSION no

16mm Setback

With ample tire clearance

Secret Chain Blend also utilizes the world's fastest

Shimano Dura-Ace FC-R9200 12 Speed Chainring Road despite being narrower than theWith 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