Shimano Dura-Ace FC-R9200 12-Speed Chainring - 54t Asymmetric 110 BCD BLK NJ CheckoutSpec= 60tpi offers up to 3-1/4" stem

offers up to 3-1/4" stem height increase

Prior to 2016 the PR 3

Innovative DUB-PWR design allows for lightweight

Updated damper and air spring make this the fastest 40 ever

Shimano Dura-Ace FC-R9200 12-Speed Chainring - 54t Asymmetric 110 BCD BLK NJ CheckoutSpec= 60tpi offers up to 3-1/4" stemShimano 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 Color Black Ring Position Type Outer Tooth Count 54 Round or Oval Round Drivetrain Speeds 12 Chainring BCD 110 Shimano Asymmetric Material Aluminum Defined Color Black Size 54T