11 speed.8 pieces (GRX ST-RX810 Hydraulic STI levers with hoses, 2x Left sub, RX810 Flat Mount Hydraulic brake calipers - front and rear, BBR60, Ultegra: bottom bracket, RX810 1 ring crankset, M8000 XT Wide Range cassette, R8000 Ultegra chain and RX812 rear derailleur). Rotors can be purchased separate.
We love this Shimano 1GRX RX810 Hydraulic STI Groupset.
Buy Shimano GRX RX810 Hydraulic STI Groupset from Texas Cyclesport, A Better Bike Ride Begins Here.