Shimano GRX FC-RX820 2 x 12-Speed Crankset Size:172.5mm 48-31T Optimal balance of stiffness

Optimal balance of stiffness

and many other options usually reserved for much more expensive mountain bike helmets

Compatible 12-speed Shimano E-MTB drivetrains

Spokes: Sapim E-Lite [R] Race [F]

1305g (ENVE Alloy Hubs)

Shimano GRX FC-RX820 2 x 12-Speed Crankset Size:172.5mm 48-31T Optimal balance of stiffnessThe 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. FeaturesGravel optimized 48 31t gear combination ratios preserve riding rhythm on rough surfaces The 17t range covers an array of riding conditions Smaller gear steps for cadence control on