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Shimano Deore RD-M5100-SGS Rear Derailleur - 11-Speed, Long Cage, Black

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The Shimano RD-M5100 Rear Derailleur provides efficient and smooth shifting for Deore M5100 11-speed drivetrains.

  • Features the Shadow RD+ chain stabilizer system to minimize chain slap
  • Compatible with a 51T maximum cog size for 11-speed systems