
Shimano RD-M8100 Deore XT 12-Speed Rear Derailleur SGS
The Shimano RD-M8100 Deore XT 12-Speed Rear Derailleur SGS pairs SHIMANO’s HYPERGLIDE+ system with a wide 10-51T range for smooth transitions under load. Bigger 13T pulleys help chain management stay steady through rough terrain, while SHIMANO SHADOW RD+ and the Bump Stopper reduce chain noise in lower gears.
Key Features
- Speed Compatibility: 12-speed
- Cassette Range: 10-51T
- Pulley Size: 13T
- Shifting Technology: HYPERGLIDE+ supports faster and shockless shifting performance
- Drivetrain Stability: Decreased derailleur and chain tension in low gear positions helps reduce drivetrain noise
- Pulley Cage System: Bump Stopper bumper helps quiet chain movement on rough terrain
- Derailleur Design: Low-profile SHIMANO SHADOW RD+ layout helps protect the derailleur on technical trails
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Shimano RD-M8100 Deore XT 12-Speed Rear Derailleur SGS
The Shimano RD-M8100 Deore XT 12-Speed Rear Derailleur SGS pairs SHIMANO’s HYPERGLIDE+ system with a wide 10-51T range for smooth transitions under load. Bigger 13T pulleys help chain management stay steady through rough terrain, while SHIMANO SHADOW RD+ and the Bump Stopper reduce chain noise in lower gears.
Key Features
- Speed Compatibility: 12-speed
- Cassette Range: 10-51T
- Pulley Size: 13T
- Shifting Technology: HYPERGLIDE+ supports faster and shockless shifting performance
- Drivetrain Stability: Decreased derailleur and chain tension in low gear positions helps reduce drivetrain noise
- Pulley Cage System: Bump Stopper bumper helps quiet chain movement on rough terrain
- Derailleur Design: Low-profile SHIMANO SHADOW RD+ layout helps protect the derailleur on technical trails
Product Information
Product Information
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Description
The Shimano RD-M8100 Deore XT 12-Speed Rear Derailleur SGS pairs SHIMANO’s HYPERGLIDE+ system with a wide 10-51T range for smooth transitions under load. Bigger 13T pulleys help chain management stay steady through rough terrain, while SHIMANO SHADOW RD+ and the Bump Stopper reduce chain noise in lower gears.
Key Features
- Speed Compatibility: 12-speed
- Cassette Range: 10-51T
- Pulley Size: 13T
- Shifting Technology: HYPERGLIDE+ supports faster and shockless shifting performance
- Drivetrain Stability: Decreased derailleur and chain tension in low gear positions helps reduce drivetrain noise
- Pulley Cage System: Bump Stopper bumper helps quiet chain movement on rough terrain
- Derailleur Design: Low-profile SHIMANO SHADOW RD+ layout helps protect the derailleur on technical trails

















