Shimano GRX FC-RX820 2x12 Chainring - Four Bolt - 110 BCD - 51.1mm - Round - 31T - 12 Speed - Alloy Out of Stock Heavy duty

Heavy duty

I-Spec II - whichever combo you’ve got

Compound:  The SmartEVO DH Compound is the enduro and downhill racing-specific formulation

There is also a sunglasses docking port to stash your sunnies when you don’t need them

This pack comes with 2 complete units - enough to join 2 chains

Shimano GRX FC-RX820 2x12 Chainring - Four Bolt - 110 BCD - 51.1mm - Round - 31T - 12 Speed - Alloy Out of Stock Heavy dutyThe 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