Shimano XT RD-M8100-SGS Rear Derailleur - 12-Speed, Long Cage, Black, For 1x, Full View


  • Offers fast and shockless shifting thanks to HYPERGLIDE+ technology
  • The low-profile design includes a bumper added to the derailleur pulley cage
  • Shimano Shadow RD+ technology reduces chain slap and creates a quieter drivetrain
  • Includes a large 13t pulley
  • The drivetrain is silent in all gear positions with decreased rear derailleur and chain tension in low gear
  • The long cage is designed to be used with 1x12 drivetrain systems


  • Largest Cog: 51
  • Rear Derailleur Mount Type: 10x1 Standard
  • Chain Wrap Capacity (teeth): 41t
  • Cage Length: Long
  • Rear Der/Shifter Compatibility: Shimano Mountain
  • Drivetrain Speeds: 12
  • Weight: 284g

Shimano XT RD-M8100-SGS Rear Derailleur - 12-Speed, Long Cage


Regular price $118.99 Save $0.00

Shipping calculated at checkout.

The Shimano Deore XT RD-M8100 rear derailleur offers fast and precise shifting performance optimized to take on any trail.