The Shimano GRX FC-RX810-2 31T-ND Inner Chainring is a genuine Shimano replacement chainring designed for compatible GRX RX810 2x11-speed cranksets using a 48/31T chainring combination. Ideal for replacing a worn or damaged inner ring, it restores the smooth, precise shifting performance expected from Shimano’s dedicated gravel drivetrain.
- Genuine Shimano GRX replacement inner chainring
- Designed for Shimano FC-RX810-2 2x11-speed cranksets
- 31-tooth inner chainring
- Specifically matched to a 48/31T chainring combination
- Lightweight aluminium construction
- High rigidity supports precise front shifting
- Anodised teeth for increased durability
- Designed for Shimano HG 11-speed chains
- Suitable for gravel and cyclocross drivetrains
- 4-arm chainring fitting
- 80mm bolt circle diameter
- Ideal replacement for a worn or damaged GRX chainring
Designed specifically for gravel and cyclocross riding, the 31-tooth inner chainring provides the lower gearing required for steep climbs, loose surfaces and long off-road adventures. When paired with the matching 48T-ND outer chainring, the 48/31T configuration offers a versatile gear range for riders tackling mixed terrain, technical gravel routes and demanding gradients.
Shimano’s lightweight aluminium construction provides an effective balance of low weight and rigidity, helping maintain accurate front shifting even under higher pedalling loads. Anodised teeth add durability for regular use in challenging riding conditions.
The FC-RX810-2 31T chainring is designed to work with compatible Shimano HG 11-speed chains and uses a 4-arm, 80mm bolt circle diameter fitting. For correct shifting performance, it should be paired with the corresponding 48T-ND outer chainring.