microSHIFT RD-M21SS: RD 1x6/7

microSHIFT RD-M21SS: RD 1x6/7

Regular price $12.99 $0.00 Unit price per
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M21 rear derailleurs are designed to work with 6- and 7-speed Shimano road and mountain shifters. Enjoy the wide variety of bikes you can get going again with M21 rear derailleurs.

  • Robust composite and steel construction
  • Compatible with Shimano 6- and 7-speed mountain and road systems

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