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Shimano Xtr Rd-m9120 Sgs 2x12-speed Rear Derailleur



The Shimano XTR M9120 SGS 2x12-Speed Rear Derailleur is tight and precise, designed to withstand full force pedaling on the roughest trails, while shifting gears as smooth as ever. The new derailleur features a decreased tension at low gear position to prevent high chain tension, and adds a protective bumper at the cage for extra protection. A bigger 13T pulley reduces friction for a silent, better shifting drivetrain. 2x compatible for 12-speed 10-45t cassettes.


  •  12-speed 
  •  2x compatible for 10-45t cassettes
  •  Weight: 241 grams
  •  Decreased rear derailleur tension at low gear position, to prevent high chain tension
  •  Low profile design 
  •  Light shift effort 
  •  Bumper added to rear pulley cage 

Model Number
Item Code
Shimano Xtr Rd-m9120 Sgs 2x12-speed Rear Derailleur