Shimano GRX FC-RX820 2x12 Chainring - Four Bolt - 110 BCD - 51.1mm - Round - 31T - 12 Speed - Alloy Out of Stock Head: AH Head with pressure

Head: AH Head with pressure release

and an easy-to-adjust Threshold Lever for added pedalling efficiency

Heavy duty

I-Spec II - whichever combo you’ve got

Shimano GRX FC-RX820 2x12 Chainring - Four Bolt - 110 BCD - 51.1mm - Round - 31T - 12 Speed - Alloy Out of Stock Head: AH Head with pressureThe SHIMANO FC RX820 2 balances weight savings and optimal efficiency for mixed terrain riding and racing. Double chainring gearing caters to the segmented demands of gravel cycling, maintaining the tighter gear steps needed to maintain your position in the bunch. Features Smaller gear steps for cadence control on mixed terrain riding Gravel optimized gear ratios preserve riding rhythm on rough surfaces Wider gear range Specifications Rear speeds 12