microSHIFT M21 Rear Derailleur

Description

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 6,7 Speed, Short Cage, Dropout Claw Hanger, Black Color: Black Rear Derailleur Mount Type: Dropout Claw Hanger Chain Wrap Capacity (teeth): 39 Rear Der/Shifter Compatibility: Shimano Mountain Cage Length: Short Drivetrain Speeds: 7 6,7 Speed, Short Cage, Black Color: Black Largest Cog: 34 Rear Derailleur Mount Type: 10×1 Standard Chain Wrap Capacity (teeth): 39 Rear Der/Shifter Compatibility: Shimano Mountain Cage Length: Short Drivetrain Speeds: 6 , 7 6,7 Speed, Super Short Cage, Dropout Claw Hanger, Black