Shimano GRX 810 Rear Derailleur 11-speed
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Shimano GRX 810 Rear Derailleur 11-speed
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Code: RD-RX81
Shimano GRX 810 Rear Derailleur 11-speed
With an integrated chain stabilizer mechanism, the Shimano GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner. 
  • Adjustable chain stabilizer prevents chain slapping and drops
  • Switch stabilizer ON/OFF to match the terrain
  • Gravel-tuned clutch tension
  • Compatible with current road Dual levers
  • Low sprocket: Max. 34T/Min. 30T
  • Total capacity: 40T
  • Smooth and reliable mixed surface shifting
Mr Rickaby Great addition to my travel bike, easy to install, smooth shifting and no more chain slap!
Don Upgraded from an Ultegra derailleur on my gravel bike for the clutch mechanism. Works great and no more chain slap on the frame. Weighs a few grams more but not a problem.