NEW Shimano Dura Ace FC-R9100 52 / 36 11 speed semi-compact chainrings inc bolts

NEW Shimano Dura Ace FC-R9100 series 52 / 36 11 speed semi-compact chainrings. To be used with Shimano Dura Ace FC-R9100 model crankarms. Consult Shimano site for more specific details and compatibility.

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