Shimano GRX RX827 Di2 12 Speed Shadow ES for 51t Derailleur

Shimano GRX RX827 Di2 12 Speed Shadow ES for 51t Derailleur

  • 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
  • Product Type
    Rear Derailleurs
  • Speed
    12 Speed
  • Discipline
    Gravel & Cyclocross
  • Colour
    Grey
  • Size
    SGS - long
  • Di2
    Yes

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