Shimano Dura-Ace 9000 Chainring - 50 Tooth 11-Speed 110mm BCD For 50-34T Combination MFPN=11654580 5mm Rings 40 Number of

5mm Rings 40 Number of Chainrings Single Drivetrain Speeds 13 Chainring BCD 123 Color Carbon Crank Length (mm) 172

The adjustable headset permits a 0

Double X bridge shape for precise gear shifting

without needing to unpack your tool wrap on the trail

Shimano Dura-Ace 9000 Chainring - 50 Tooth 11-Speed 110mm BCD For 50-34T Combination MFPN=11654580 5mm Rings 40 Number ofThis Shimano chainring allows you to update your Dura Ace FC 9000 11 speed crankset with a chainring configuration to best fit your riding style. Integrates Shimano Hollowglide Technology: the high rigidity hollow structure cuts down on weight yet maintains strength to provide better power transfer and quicker more precise front shifting Features a weight saving 4 bolt design with a BCD of 110 mm Ideal for road cycling Ring Position Type Outer Tooth