Specifications
Attributes
Brake TypeHydraulic Disc
Shift TypeMechanical
Speeds12
Chainrings1x
Cassette Range10-51T
Max Rear Cog51
Has Front DerailleurNo
Crank Spindle TypeShimano Hollowtech II (24mm)
Freehub TypeShimano Micro Spline
RD Max Capacity51
Included Components
Shimano GRX RX820 Mechanical 1x12 Disc Groupset
Groupset2,720g
FC-RX820-1 Crankset (40T, 172.5mm)
Crankset648g
RD-RX822-SGS Rear Derailleur (Long Cage)
Derailleur (Rear)288g
CS-M8100 Cassette (10-51T)
Cassette473g
CN-M8100 Chain (126 links)
Chain281g
BR-RX820 Disc Brake Caliper (Front)
Front Brake146g
BR-RX820 Disc Brake Caliper (Rear)
Rear Brake136g
ST-RX820 Shifter/Brake Lever (Right)
Shifters296g
ST-RX820-LA Brake Lever (Left)
Brake Levers274g
RT-CL800 Disc Rotor (160mm)
Accessories109g×2
Total Weight5,480g
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