Shimano  GRX Di2 RD-RX827 SGS 12-Speed Rear Derailleur

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Pair this quick-shifting Shimano rear derailleur with a 10–51T cassette for speed and range on any gravel challenge. Its robust design with built-in protection stands up to hard impacts.

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Features

  • Fully wireless shifting built for rough gravel terrain
  • A wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity
  • Automatic Impact Recovery function instantly returns the derailleur to its original position after impact
  • This is a slimmer, stronger evolution of the pioneering chain-stabilizing SHADOW RD+ concept from Shimano
  • Tucked safely inside an enclosed space, the battery won't budge even in rough terrain, while remaining easily removable for charging

Imported.

View the Shimano Di2 Product LineView all Shimano Rear Derailleurs

Technical Specs

Best Use

Gravel Cycling

Derailleur Type

Rear

Cage Length

Long Cage

Max Rear Cog Size

51T

Speeds

12-speed

Weight

449 grams

image of a girl hiking in iceland

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