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

ROBUST: Composite and steel construction COMPATIBLE: Works with Shimano 6- and 7-speed mountain and road systems QUALITY: Long cage for double or triple 32T setup INCLUDES: Frame hanger attachment Our line of mountain and trekking derailleurs starts with M21, but that doesn't mean it's entry level. Using the same kinematics as our more expensive derailleurs and innovative construction technics, M21 delivers responsive performance in an attainable package.