microSHIFT M21 Rear Derailleur - 6,7 Speed, Short Cage, Black
$13.33 Regular price $14.99
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
|Chain Wrap Capacity (teeth)||39|
|Rear Der/Shifter Compatibility||Shimano Mountain|
|Rear Derailleur Mount Type||10x1 Standard|