ALUGEAR 2x Aero Chainring for Shimano GRX - Black

Chainring set 2-speed ROUND AERO for Shimano GRX FC-RX820-2 (12 speed), FC-RX810-2 (11 speed)

Specifications
Intended to use: 2X 12 speed and 2X 11 speed for Gravel bike
Optimum chainring combinations: 46-32; 48-34
Mounting position: outside 46T; 48T;  inside 32T; 34T
Bolt circle diameter: 110 mm Shimano Asymmetric (GRX versions outer chainrings), 80 mm Shimano Asymmetric (GRX versions inner chainrings)
Attachment: 4-arm spider
Material: Aluminum 7075-T6
Made: CNC milling
Surface coating: Anodizing
Color: Outer chainring in 8 colors; Inner chainring only in black

Compatibility
Compatible with Shimano 2X 12 speed FC-RX820-2 GRX cranks  (12 speed)
Compatible with Shimano 2X 11 speed FC-RX810-2 GRX cranks (11 speed)
Shifting: 1x12 and 1x11 speed 
Chainrings you may use the following chains: 12sp Shimano (Hyperglide+), 12sp KMC, 11sp Shimano chains

Note: The ALUGEAR 2X AERO chainrings for GRX are Not compatible with cranks FC-RX610 and FC-RX600

Mfr Claimed Weights
46 teeth – 110g
48 teeth – 123g
32 teeth – 35g
34 teeth – 40g