The Shimano GRX Di2 groupset is Shimano’s new 2×12-speed electronic groupset for gravel bikes, a combination of Shimano’s unparalleled electronic shifting technology and a wide range of gear ratios. Shimano developed each component with the specific needs of cyclists in mind.
- ST-RX825 Di2 2×12-speed brake/shift controls.
- GRX BR-RX820 Flat mount calipers.
- GRX FC-RX8202 48/31D crankset, 172.5 mm.
- FD-RX825 Di2 front derailleur, direct mount, 2×12 speeds.
- RD-RX825 Di2 12v rear derailleur.
- Ultegra CS-R8100 11-34D sprocket cassette.
- CN-M8100 chain, 126 links (locking Quick Link included).
- RT-MT800 discs (Centerlock, 160 mm diameter).
- Shimano BT-DN300 Di2 battery for mounting in the seatpost.
- Shimano EW-EC300 USB type A charging cable (cable length 1500mm).
- Shimano Di2 EW-SD300-I 600mm internal power cable.
- Shimano Di2 EW-SD300-I 1200mm internal power cable.
- Shimano RT-CL800 Center-Lock 160mm brake disc including locking ring.
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