Shimano XTR RD-M9100-GS Rear Derailleur - 12 Speed, Medium Cage, Gray, With Clutch, Full View


  • Designed with a Shadow RD+ clutch to reduce chain slap and create a quiet drivetrain with less distraction
  • Decreased rear derailleur tension at low gear positions prevents high chain tension
  • Features a larger 13-tooth pulley
  • For use with 1x11 and 1x12 setups, but only up to a 45-tooth cog


  • Largest Cog: 45
  • Rear Derailleur Mount Type: 10x1 Standard
  • Chain Wrap Capacity (teeth): 35t
  • Cage Length: Medium
  • Rear Der/Shifter Compatibility: Shimano Mountain
  • Drivetrain Speed: 12
  • Weight: 237g
  • The mid-cage option is 28mm shorter, offering superior ground clearance

Shimano XTR RD-M9100-GS Rear Derailleur - 12 Speed, Medium Cage


Regular price $273.99 Save $0.00

Shipping calculated at checkout.

The Shimano XTR M9100 is designed to withstand full force pedaling on the roughest trails, with smooth shifting and exceptional chain stability. It offers enhanced shifting performance, a low profile design, and low sprocket compatibility.