If 11 speed 42T Max for 1 x 11 Set Up
Rear Derailleur MTB SHIMANO Deore RD-M5120SGS 10/11-Spd Long Cage Ind. Pack ERDM5120SGS/4550170618544
The Shimano Deore RD-M5120 rear derailleur can be combined with 2x10-speed and 2x11-speed drivetrains as well as 1x10-speed drivetrains. It is designed for 42 tooth on the largest cassette sprocket when using a drivetrain with two chainrings, and can handle up to 46 teeth on the largest sprocket when using a 1x set-up. The rear derailleur features Shadow+ clutch technology, where a stabilizer counteracts chain sag, slap and drop. RD-M5120 is either mounted via a standard derailleur hanger or directly.
Series: Deore M5100
Application: All Mountain, Cross Country, City & Touring
Gearing: 10-speed, 11-speed
Mount: standard (Direct Mount compatible)