Shimano Dura-Ace FC-R9200 12-Speed Chainring - 40t Asymmetric 110 BCD BLK NJ CheckoutSpec= Bosch Gen 4 Elliptical design offers more power

Elliptical design offers more power better traction and less shifting

46 BB/Frame Interface PF30 BB Shell Width (mm) 68 BB Shell Width (mm) 73 Weight 153 Spindle Interface Type SRAM/Truvativ GXP Defined Color Black

} preload adjustable 40 mm travel aluminium

Easy On-Ramp profile allows for a smooth tire installation and stress- free inflation

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Shimano Dura-Ace FC-R9200 12-Speed Chainring - 40t Asymmetric 110 BCD BLK NJ CheckoutSpec= Bosch Gen 4 Elliptical design offers more powerShimano 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