Shimano Dura-Ace FC-R9200 12-Speed Chainring - 40t Asymmetric 110 BCD BLK NJ CheckoutSpec= (44mm) 150mm - Blk }Shimano BB-UN300 Bottom Bracket -

}Shimano BB-UN300 Bottom Bracket - English 73 x 123mm Spindle Square Taper JIS

Rear Axle QR x 141mm Rim Width (Internal) 29 Cassette Body Type Shimano Micro Spline Wheel Size 27

Exact Actuation Ratio delivers 3mm motion per shift across the entire cassette

}SRAM Force 2x Chainring Kit - 50/37t 2x12-Speed 8-Bolt Direct Mount Black D2

grip color black clamp color black length 143mm diameter -

Shimano Dura-Ace FC-R9200 12-Speed Chainring - 40t Asymmetric 110 BCD BLK NJ CheckoutSpec= (44mm) 150mm - Blk }Shimano BB-UN300 Bottom Bracket -Shimano Dura Ace FC R9200 12 Speed Chainring 40t Asymmetric 110 BCD Black NJ. 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 InnerTooth Count 40Round or Oval RoundDrivetrain Speeds 12Chainring BCD 110 Shimano AsymmetricMaterial AluminumDefined Color Black