SHIMANO DEORE M4120 10/11 SPEED REAR DERAILLEUR, RD-M4120, 10/11, Long, Blac

Using a low profile SHIMANO SHADOW RD design, the SHIMANO DEORE M4120 derailleur is perfect for 2x10 and 2x11-speed MTB riding.
 
Features Shimano Shadow Technology
Low-profile design avoids damage from rocks
Quick, crisp shifting