Shimano M9100 XTR Rear Derailleur

The Shimano RD-M9100 XTR Rear Derailleur is designed for optimal chain stability and smooth shifting even on rough trails. Featuring a reduced tension at low gear position to prevent high chain tension and a bumper at rear derailleur pulley cage, this derailleur delivers precision and strength on your ride. With a 13T pulley teeth and up to 45T (medium cage) or 51T (long cage) low sprocket, the RD-M9100 XTR is the perfect choice for 1x12 systems.

• Shadow RD + for optimal chain retention
  
• Decreased rear derailleur tension at low gear position, to prevent high chain tension
  
• Added bumper at rear derailleur pulley cage
  
• Optimized for new drive system
  
• Cage Length: choose; GS/Medium, or SGS/Long
  
• Total Capacity: 35T (medium cage), 41T (long cage)
  
• Max Front Difference: 0 Teeth (made for 1x12 systems)
  
• Mount: Direct attachment (conventional)
  
• Tension Pulley Bearing: Sealed Bearing
  
• Guide Pulley Bearing: Sealed Bearing
  
• Number of Pulley Teeth: 13T
  
• Series: M9100
  
• Max Low Sprocket: 45T (medium cage), 51T (long cage)
  
• Min Low Sprocket: 45T
  
• Top Normal Spring Type: Shimano SHADOW RD+
  
• Rear Speeds: 12-speed (also compatible with Shimano CS-M9110 11-speed cassette)
  
• Weight: 237g.