Shimano Dura-Ace 9000 Chainring - 50 Tooth 11-Speed 110mm BCD For 50-34T Combination Manufacturer Spec ERD (mm)-383 Siped knobs conform to terrain

Siped knobs conform to terrain and provide extra grip for secure cornering

Alloy axle and lever

Smooth transition area for maximum control when cornering

Carbon shell with aluminum flanges

}Schwalbe Lugano II Tire - 700 x 25 Clincher Folding Black K-Guard

Shimano Dura-Ace 9000 Chainring - 50 Tooth 11-Speed 110mm BCD For 50-34T Combination Manufacturer Spec ERD (mm)-383 Siped knobs conform to terrainShimano Dura Ace 9000 Chainring 50 Tooth 11 Speed 110mm BCD For 50 34T Combination. This 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