
These Shimano GRX RX820-2 anodized aluminum chainrings are for specifically designed for use with GRX FC-RX820-2 2x 12-speed cranksets.
- Aluminum 31t inner chainring is lightweight and feature a hard anodized finish for added durability
- 4-Bolt Asymmetric 80 BCD
- Designed for use with 48t outer chainring (sold separately)
- Ring Position/Type: Inner
- Tooth Count: 31
- Drivetrain Speeds: 12
- Round or Oval: Round
- Chainring BCD: 80
- Material: Aluminum
- Color: Black
- Weight: 40
- Defined Color: Black
- Number of Bolt Holes: 4-Bolt
