XTR Long Cage Rear Derailleur 12-speed

$273.99 $273.99
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Shimano XTR Long Cage Rear Derailleur 12-speed

The XTR M9100 series of derailleurs brings a new level of drivetrain silence thank to decreased tension in the low gear position and an added bumper on the pulley cage. Larger 13T pulleys increase efficiency and chain management while compatibility with SHIMANO's new 12-speed cassettes boosts range.


  • Enhance shifting performance
  • Optimized for new drive system
  • Silent drivetrain
  • Decreased rear derailleur tension at low gear position, to prevent high chain tension at low gear
  • Add bumper at rear derailleur pulley cage
  • Bigger 13T pulley
  • Low profile design
  • Low sprocket combination
  • 10-51T (12-speed)

Tech Specs:

  • Color- Series color
  • Average weight- 240
  • Remarks- w/Bumper on pully cage
  • Rear speeds- 12
  • Compatible chain- HG 12-speed
  • Total capacity- 41T
  • Low sprocket|Max.- 51T
  • Low sprocket|Min.- 51T
  • Top sprocket|Max.- 10T
  • Top sprocket|Min.- 10T
  • Fluoric coated link bushings- 8
  • Pulley|Guide pulley bearing- Sealed Bearing
  • Pulley|Tension pulley bearing- Sealed bearing
  • Pulley|Teeth- 13T

Part Number: IRDM9100SGS