Shimano GRX FC-RX820 2x12 Chainring - Four Bolt - 110 BCD - 51.1mm - Round - 31T - 12 Speed - Alloy Out of Stock Compound: The SmartEVO DH Compound

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

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

Not Compatible with SRAM’s DB mineral oil brakes

Head: AH Head with pressure release

Features: Laser perforated and bonded eyelets

Shimano GRX FC-RX820 2x12 Chainring - Four Bolt - 110 BCD - 51.1mm - Round - 31T - 12 Speed - Alloy Out of Stock Compound: The SmartEVO DH CompoundThe 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