Shimano Dura-Ace FC-R9200 12 Speed Chainring Size:50t Impressively quiet and smooth thanks

Impressively quiet and smooth thanks to the HyperGlide technology the chain also shifts crisply and quickly with dependable reliability

Centrifugal force drives standard latex-based sealants against the outer circumference of the tyre

Rated Voltage: 7

our signature open-ear design

Nylon + Glass Fiber / Polypropylene

Shimano Dura-Ace FC-R9200 12 Speed Chainring Size:50t Impressively quiet and smooth thanksWith 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