Shimano Deore CN-601 1X11 Speed chain. Gear: 1X11 Speed. The Top Normal rear derailleur for the Deore 1x11-speed drivetrain is designed to work perfectly with the large 11-51 teeth Shimano CS-M5100 cassette and features theShadow RD+ technology known from Deore XT and SLX which reduces noise level and increases chain stability.
