Shimano GRX RD-RX822-GS Rear Derailleur - 12-Speed, Direct Mount, Medium Cage, Shadow Plus Design, 45t Max Low

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With an integrated chain stabilizer, Shimano GRX RD-RX822 12-speed rear derailleurs feature an intergrated chain stablizer that delivers quieter shifting and more secure chain management in rough terrain. The chain tensioner has an ON/OFF switch for easy wheel removal.

  • Shimano RD-RX822-GS rear derailleur with medium cage is compatible with 10-45t, 12-speed Shimano MTB cassettes
  • Interchangeable, replaceable GS/SGS derailleur cage
  • Shadow RD+ design, combined with the adjustable chain stablilizer, prevents chain slap and drops
  • ON/OFF stabilizer switch matches terrain for smooth and reliable shifting on mixed surfaces
  • Compatible with HG 12-Speed Chains
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