Shimano Deore XT RD-M8120 Rear Derailleur (Black) (Shadow Plus) (2 x 12-Speed) (Long Cage) (SGS)

Shimano Deore XT RD-M8120 Rear Derailleur (Black) (Shadow Plus) (2 x 12-Speed) (Long Cage) (SGS)
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Price: $118.99

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Shimano Deore XT RD-M8120 Rear Derailleur Description:

The Shimano Deore XT group has proven time and again that it is engineered for performance and reliability. The Deore XT RD-M8120 12-speed Rear Derailleur is no different. 13T pulley wheels increase chain wrap for smooth and efficient shifting while the bumper on the pulley cage keeps things silent in rough terrain. Shadow Plus is a low-profile design that keeps the derailleur tucked close to the bike and tensions the drivetrain to eliminate chain slap and dropped chains.


  • Designed for Shimano 2 x 12 drivetrains
  • Shadow Plus with on-off switch reduces chain slap and chain drop
  • Larger 13T pulley wheels improve chain wrap for increased efficency
  • Bumper on pulley cage to quiet drivetrain on rough terrain
  • Durable aluminum construction takes the abuse that trail riding delivers
  • Compatible with 10 - 45T Shimano cassette


  • Speed: 2 x 12 Speed
  • Shifter Compatibility: Shimano Mountain (12 Speed)
  • Shift Mechanism: Cable Actuated
  • Max. Tooth: 45T
  • Min. Tooth: 10T
  • Chain Wrap Capacity: 45T
  • Cage Material: Aluminum
  • Chain Retention: Shadow Plus
  • Color: Black
  • Weight: 285g

This product was added to our catalog on February 10, 2023