microSHIFT M21 Rear Derailleur - 6,7 Speed, Long Cage, Black Bike Brand_GT Its lightweight aluminum frame provides

Its lightweight aluminum frame provides a responsive and agile ride

Zip Tie Attachment

The stroke of genius that makes all the difference is the combination of the internal bike stand that locks your bike into place

Twin Bar Design

microSHIFT M21 Rear Derailleur - 6,7 Speed, Long Cage, Black Bike Brand_GT Its lightweight aluminum frame providesM21 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