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Online shopping is here!
Market competetive pricing
Products you can't find anywhere else!
Ship to home
Pickup in store
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
Option | UPC | MPN | Store SKU |
---|---|---|---|
Short Cage / Black / 6 – 7-speed | 04710495436388 | RD-M21SS | MIC48633423K |
Long Cage / Black / 6 – 7-speed | 04710495436340 | RD-M21L | MIC47624793K |