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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. 
 
Features
  • 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