Shimano Deore RD-M4120 Rear Derailleur SGS 10/11 Speed Mountain Bike MTB M5120

Using a low profile SHIMANO SHADOW RD design, the SHIMANO DEORE M4120 derailleur is perfect for 2x10 and 2x11-speed MTB riding. SHIMANO DEORE - Rear Derailleur - SHIMANO SHADOW RD - 2x10/11-speed. Pulley cage:SGS.

eBay