microSHIFT M21 Rear Derailleur - 6,7 Speed, Long Cage, Dropout Claw Hanger, Black

3 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.
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Robust composite and steel construction
Compatible with Shimano 6- and 7-speed mountain and road systems
Long cage for double or triple 32T setup
Includes frame hanger attachment