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

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