Shimano GRX 827 Di2 1x12-Speed Gravel Groupset
The system uses a wireless rear derailleur with internal battery and matches with a wide-range 10–51T cassette for climbing and fast terrain.
It also features gravel-specific ergonomics, customizable shifting via Shimano’s E-Tube app, and rugged design elements like Shadow ES chain stability and impact recovery technology.
The groupset does not include rotors.
- Ideal for: top-level groupset for gravel riding, gravel racing, hilly terrain
- Wide gear ratio
- Performance and race-ready groupset for gravel riding, racing at great value
- Aligned to Shimano Ultegra road-level groupset
- 1x12-speed, disc brake, semi-wireless electronic groupset
- Rear derailleur is quick, smooth and effortless, for unmatched drivetrain efficiency
- Rear derailleur's compact design includes an integrated wireless unit, charger, and switch
- Button on the rear derailleur for Di2 operations, and LED light denotes synchronised shift mode, setting mode and charge requirements
- Rear derailleur wirelessly connects to the shifters
- Low profile Shadow derailleur design
- GRX/Ultegra wireless hydraulic Servo Wave disc brake Di2 STI levers give you control, modulation and power with minimal effort in all riding conditions
- Levers use CR1632 batteries which last for approximately 1.5-2 years
- Hyperglide+ technology in the sprockets and chain improves shifting under load
- Rotors are sold separately
- Shimano GRX ST-RX825 12-Speed Hydraulic Semi-Wireless Shifter
- Shimano GRX ST-RX820 Hydraulic Brake Lever
- Shimano GRX BR-RX820 Flat Mount Hydraulic Callipers, pair
- Shimano GRX FC-RX820 12-Speed Double 1x Chainset
- Note: Chainset is available in a range of crank lengths and sizes, please select you size
- Shimano GRX RD-RX817 Di2 12-Speed Rear Derailleur with Battery
- Shimano CS-M7100 12-Speed Cassette, 11-51T
- Shimano CN-M6100 12-Speed Chain
- Shimano BB-R60 Ultegra Bottom Bracket
- Shimano Di2 BT-DN320 Battery
- Shimano Non-Series Di2 EC-DN100 Di2 wireless rear derailleur battery charger
- Shimano Hydraulic brakes are supplied with hoses, pre bled, ready for installation
- Brakes are set up with left lever/rear brake and right lever/front brake
- NOTE: The groupset is not supplied with Disc Brake Rotors or Di2 Charging Cable
The system uses a wireless rear derailleur with internal battery and matches with a wide-range 10–51T cassette for climbing and fast terrain.
It also features gravel-specific ergonomics, customizable shifting via Shimano’s E-Tube app, and rugged design elements like Shadow ES chain stability and impact recovery technology.
The groupset does not include rotors.
- Ideal for: top-level groupset for gravel riding, gravel racing, hilly terrain
- Wide gear ratio
- Performance and race-ready groupset for gravel riding, racing at great value
- Aligned to Shimano Ultegra road-level groupset
- 1x12-speed, disc brake, semi-wireless electronic groupset
- Rear derailleur is quick, smooth and effortless, for unmatched drivetrain efficiency
- Rear derailleur's compact design includes an integrated wireless unit, charger, and switch
- Button on the rear derailleur for Di2 operations, and LED light denotes synchronised shift mode, setting mode and charge requirements
- Rear derailleur wirelessly connects to the shifters
- Low profile Shadow derailleur design
- GRX/Ultegra wireless hydraulic Servo Wave disc brake Di2 STI levers give you control, modulation and power with minimal effort in all riding conditions
- Levers use CR1632 batteries which last for approximately 1.5-2 years
- Hyperglide+ technology in the sprockets and chain improves shifting under load
- Rotors are sold separately
- Shimano GRX ST-RX825 12-Speed Hydraulic Semi-Wireless Shifter
- Shimano GRX ST-RX820 Hydraulic Brake Lever
- Shimano GRX BR-RX820 Flat Mount Hydraulic Callipers, pair
- Shimano GRX FC-RX820 12-Speed Double 1x Chainset
- Note: Chainset is available in a range of crank lengths and sizes, please select you size
- Shimano GRX RD-RX817 Di2 12-Speed Rear Derailleur with Battery
- Shimano CS-M7100 12-Speed Cassette, 11-51T
- Shimano CN-M6100 12-Speed Chain
- Shimano BB-R60 Ultegra Bottom Bracket
- Shimano Di2 BT-DN320 Battery
- Shimano Non-Series Di2 EC-DN100 Di2 wireless rear derailleur battery charger
- Shimano Hydraulic brakes are supplied with hoses, pre bled, ready for installation
- Brakes are set up with left lever/rear brake and right lever/front brake
- NOTE: The groupset is not supplied with Disc Brake Rotors or Di2 Charging Cable
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