Shimano GRX RD-RX827 GRX Di2, 12-speed rear derailleur, Shadow ES, for 51T single
£429.99
Shimano GRX RD-RX827 GRX Di2, 12-speed rear derailleur, Shadow ES, for 51T single
- Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world
- Precise and clean wireless shifting with Integrated on-board removable battery (BT-DN320 sold separately)
- The integrated removable on-board battery is protected within the linkage
- Crash recovery function, absorbs impacts and returns to its original position
- Connectivity BLE, ANT private
- Shadow ES features a super low profile skid plate design and optimized slant angle for optimal clearance
- Shadow ES uses a dual spring chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting
- The Shadow ES system is also zero maintenance and has no degradation of performance
- Unique structure using two springs has a tighter chain wrap that improves shifting and security with increased spring force by 70%, allowing the chain to mesh firmly with the sprocket
- With the tighter chain wrap skipping is prevented even as the cogs wear
- 13T solid pulleys and decreased derailleur tension prevent high chain tension in low gears
- Alloy outer and inner pulley cage saves weight and increases rigidity
- Cold forged wide alloy links and pivot body
- Fluorine-coated link pin bushings
- Specifically designed to work with 12-speed drivetrains
- 10-51 tooth compatible SGS cage
Press Review
Holy shiftspeed, Batman!
Shifting up and down the cassette is wildly fast. Hands down the faster of any electronic drivetrain I have used to date. - Cycling Weekly
Shimano GRX RD-RX827 GRX Di2, 12-speed rear derailleur, Shadow ES, for 51T single
SKU
RDRX827SGS
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For Gravel Adventure
Rooted in its inclusivity and curiosity. Everyone from first-timers to grizzled veterans counts on the industry's first gravel-specific groupset, for smooth shifting, reliable braking, and exceptional gravel comfort.
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