Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x, 42t Low Sprocket Max

$ 111.32
Brand: Shimano



The Shimano GRX 11-speed rear derailleur has an integrated chain stabilizer mechanism, that provides a quieter experience, shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features an ON/OFF switch for the chain tensioner. The Shimano Shadow RD+ adjustable chain stabilizer provides silent and uninterrupted rear shifting on rough terrain.

Product Details:

  • Adjustable Shimano RD+ chain stablizer prevents chain slapping and drops
  • Compatible with Shimano LinkGlide and HG 11-speed chains
  • Compatible with Shimano road Dual Control Levers
  • Gravel-tuned clutch tension provides smooth and reliable mixed surface shifting


  • Cage Length: Long
  • Chain Wrap Capacity (teeth): 31
  • Color: Black
  • Drivetrain Speeds: 11
  • Largest Cog: 42
  • Rear Der/Shifter Compatibility: Shimano Road
  • Rear Derailleur Mount Type: 10x1 Standard
  • Rear Derailleur Mount Type: Shimano Rear Direct Mount
  • Weight: 267
  • UPC: 192790448886
  • MPN: IRDRX812

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