FC-09 Chainring (50T-NK) Men's These rotors use an aluminum

These rotors use an aluminum core with steel outer plates to better control the temperature of the braking surface

Non-marking KEEN

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Extra Ventilation

FC-09 Chainring (50T-NK) Men's These rotors use an aluminumThe Shimano Dura Ace FC 09 11 speed chainrings are the perfect replacement for worn or damaged chainrings. Features HOLLOWGLIDE hollow outer chainring technology significantly improves rigidity and reduces weight Eliminates outer chainring flex for precise shifting performance, even under high load Teeth specifically developed for use with 11 speed chains to enhance contact, efficiency, and power transfer Specifications Compatible chain: Shimano HG 11