Shimano GRX FC-RX820 2 x 12-Speed Crankset Size:172.5mm 48-31T Specifically designed for Carbon Fibre

Specifically designed for Carbon Fibre parts

Ramps: 5 CNC with unique 15° profile

They were undrinkable - too sweet

The 34mm set is optimized for the SES 3

Shimano GRX FC-RX820 2 x 12-Speed Crankset Size:172.5mm 48-31T Specifically designed for Carbon FibreThe 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