Chainring Shimano GRX FC-RX810 31T-ND (2x11 48-31)
Shimano GRX FC-RX810 31T-ND inner chainring for 2x11-speed gravel cranksets. Lightweight aluminium, 80 mm BCD, designed for 48-31T gearing.
- 31T inner chainring
- Shimano GRX FC-RX810-2
- For 48-31T chainring setup
- 80 mm BCD, 4-arm mounting
Overview
Chainring Shimano GRX FC-RX810 31T-ND (2x11 48-31)
Shimano GRX FC-RX810 31T-ND is a genuine replacement inner chainring designed for the Shimano GRX RX810 series 2x11-speed gravel crankset. The 31-tooth chainring is specifically engineered for use with a 48-tooth outer chainring (48-31T combination), providing a versatile gear range for both fast riding and challenging climbs.
Manufactured from lightweight and durable aluminium, the chainring helps minimise drivetrain weight while providing excellent rigidity. Shimano's GRX series is specifically developed for gravel riding, offering reliable shifting performance on paved roads, gravel tracks and demanding mixed terrain.
The 31T-ND chainring features an 80 mm bolt circle diameter (BCD) and a four-arm mounting design. It is compatible with Shimano GRX FC-RX810-2 cranksets and allows worn or damaged inner chainrings to be replaced without changing the entire crankset. Weighing approximately 39 grams, this genuine replacement part helps maintain the drivetrain's original performance and shifting precision.
Technical specifications:
- Manufacturer: Shimano
- Series: GRX RX810
- Model: 31T-ND
- Application: Gravel / Road / Cyclocross
- Type: Inner chainring
- Number of teeth: 31T
- Drivetrain: 2x11-speed
- Compatible crankset: Shimano GRX FC-RX810-2
- Chainring combination: 48-31T
- Chainring designation: ND
- Bolt circle diameter (BCD): 80 mm
- Crankset bolt circle diameters: 80/110 mm
- Mounting: 4-arm
- Material: Aluminium
- Weight: Approx. 39 g
