Shimano Dura-Ace FC-R9200 12-Speed Chainring - 40t Asymmetric 110 BCD BLK NJ Compound/Backing-Organic (Powerful)/Steel Breathable wicking and fast drying

Breathable wicking and fast drying all-day sock for hot temps or moist conditions

front & rear WEIGHT 12

Ergonomic Split Clamp design

Model Box Two Prime 9 Speed 9 Range 11-50t Freehub Type HG (8-11sp) Shifter Multi Shift Color Black Shift Type Multi

Adjustable reach with spacer Drivetrain Speeds 7

Shimano Dura-Ace FC-R9200 12-Speed Chainring - 40t Asymmetric 110 BCD BLK NJ Compound/Backing-Organic (Powerful)/Steel Breathable wicking and fast dryingShimano 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 Inner Tooth Count 40 Round or Oval Round Drivetrain Speeds 12 Chainring BCD 110 Shimano Asymmetric Material Aluminum Defined Color Black Size 40T