Shimano Dura-Ace FC-R9200 12-Speed Chainring - 50t Asymmetric 110 BCD BLK NK Model=Comp Drop In Integrated Headset }SRAM 34T X-Sync 2 Direct

}SRAM 34T X-Sync 2 Direct Mount Eagle Chainring 3mm Boost Offset Polar Gray

Whether you're going fast or just cruising'

Defined Color Red Housing Diameter 4 End Type Shimano/SRAM Color Red

}Shimano Dura-Ace CS-R9100 11-Speed Cassette Lockring

year 2021+ model SIDLuxe stroke 40mm/1

Shimano Dura-Ace FC-R9200 12-Speed Chainring - 50t Asymmetric 110 BCD BLK NK Model=Comp Drop In Integrated Headset }SRAM 34T X-Sync 2 DirectShimano Dura Ace FC R9200 12 Speed Chainring 50t Asymmetric 110 BCD Black NK. Shimano Dura Ace FC R9200 chainrings are constructed with high quality aluminum and are compatible with FC R9200 and FC 9200 P 2x 12 speed cranksets. Asymmetric 110 BCD Compatible with HG 12 speed chains TECH SPECS Color BlackRing Position Type OuterTooth Count 50Round or Oval RoundDrivetrain Speeds 12Chainring BCD 110 Shimano AsymmetricMaterial AluminumDefined Color Black