microSHIFT M21 Rear Derailleur - 6,7 Speed, Long Cage, Black
| Availability: | In stock (1) |
The M21 rear derailleur is designed to work with 6- and 7-speed Shimano road and mountain shifters. Get a wide variety of bikes running smoothly again with this reliable derailleur.
- Robust composite and steel construction
- Compatible with Shimano 6- and 7-speed mountain and road systems
- Long cage design for optimal chain management