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

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
• Long cage for double or triple 32T setup
• Color: Black
• Largest Cog: 32
• Rear Derailleur Mount Type: 10x1 Standard
• Chain Wrap Capacity (teeth): 43
• Rear Der/Shifter Compatibility: Shimano Mountain
• Cage Length: Long
• Drivetrain Speeds: 6, 7
• Weight: 206 grams