GRX Di2 REAR DERAILLEUR 1x12s

RD-RX827-SGS

The all-new GRX RX827 rear derailleur paired with a 10-51T cassette gives riders and racers the speed, range, and robustness to pursue any gravel challenge. With built-in automatic impact recovery, an impact-deflecting shape, and solid pulleys, this derailleur stands up to hard impacts and still retains its lightning-quick shifting performance.

FEATURE

• Fully wireless shifting built for rough gravel terrain
• Robust Design: A wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity.
• RD Protection Function: The new Automatic Impact Recovery function instantly returns the derailleur to its original position after impact.
• SHIMANO SHADOW ES: A slimmer, stronger evolution of SHIMANO's pioneering chain-stabilizing SHADOW RD+ concept.
• Protected Battery: Tucked safely inside an enclosed space, the battery won't budge even in rough terrain, while remaining easily removable for charging.

PRODUCT SPECIFICATION

• Model No: RD-RX827-SGS
• Series: GRX
• Rear speeds: 12
• Mount:
  • Direct attachment (conventional): ✔
• Max. front difference: 0T
• Total capacity: 41T
• Low sprocket:
  • Max.: 51T
  • Min.: 51T
• Top sprocket:
  • Max.: 10T
  • Min.: 10T
• Fluoric coated link bushings: TBD
• Pulley:
  • Guide pulley bearing: Sealed bearing
  • Tension pulley bearing: Sealed bearing
  • Teeth: 13T
  • Sunken type pulley screw: TBD
• B-axle: Hollow axle
• TBD: B-axle 2
• Hollow axle: TBD
• Di2 connectivity wireless:
  • Di2 shifting: ✔
  • Bluetooth® LE custom (*1)|Adjust mode information: ✔
  • Bluetooth® LE custom (*1)|Di2 battery level: ✔
  • Bluetooth® LE custom (*1)|Gear position: ✔
  • Bluetooth® LE custom (*1)|SHIMANO E-BIKE SYSTEMS data items (*3): ✔
  • Bluetooth® LE custom (*1)|Compatible with E-TUBE RIDE: ✔
  • Bluetooth® LE custom (*1)|Compatible with E-TUBE PROJECT: ✔
  • ANT private (*2)|Adjust mode information: ✔
  • ANT private (*2)|Di2 battery level: ✔
  • ANT private (*2)|Gear position: ✔
  • ANT private (*2)|SHIMANO E-BIKE SYSTEMS data items (*3): ✔
• Firmware update by E-TUBE PROJECT: ✔
• SD50 port (pcs): 0
• SD300 port (pcs): 0
• SD50 connector (pcs): 0
• SD300 connector (pcs): 0
• LED for system status: ✔

FEATURED TECHNOLOGY

SHIMANO SHADOW ES

The SHADOW derailleur has evolved. It’s slimmer, stronger, smarter, and has a motor unit with Automatic Impact Recovery that returns to position after an impact.

Di2

Electric drivetrain with the best of brains and brawn.