microSHIFT M21 Rear Derailleur - 6,7 Speed, Super Short Cage, Black

$15.22 Regular price $16.99
In stock

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
  • MPN: RD-M21SS
  • UPC: 4710495436388
  • Rear Derailleur Mount Type10x1 Standard
    Rear Der/Shifter CompatibilityShimano Mountain
    Rear Der/Shifter CompatibilityShimano Road
    Cage LengthShort
    Drivetrain Speeds6
    Drivetrain Speeds7
    Chain Wrap Capacity (teeth)21
    Largest Cog32
    SKU: RD0222

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