Product Description
The Shimano XTR RD-M9100-SGS rear derailleur is built for precise shifting, strong chain retention, and quiet performance on demanding mountain bike terrain.

Shimano’s Shadow RD+ clutch helps control chain movement and reduce chain slap, while the low-profile design keeps the derailleur tucked closer to the bike for improved protection. A large 13-tooth pulley and optimized spring tension help maintain smooth shifting across wide-range mountain cassettes.

Key Features

• Shimano XTR M9100-series rear derailleur
• Shadow RD+ adjustable clutch for improved chain stability
• Low-profile Shadow design
• Long SGS cage
• Large 13-tooth pulley
• Reduced derailleur tension in lower gears
• Compatible with wide-range cassettes up to 51T
• Designed for Shimano mountain drivetrain systems

Specifications

• Brand: Shimano
• Series: XTR M9100
• Model: RD-M9100-SGS
• MPN: IRDM9100SGS
• Position: Rear
• Cage Length: Long / SGS
• Drivetrain Speeds: 12-Speed
• Drivetrain Configuration: 1x
• Largest Cog: 51T
• Chain Wrap Capacity: 41T
• Mount Type: Standard 10x1
• Clutch: Shadow RD+
• Rear Derailleur Compatibility: Shimano Mountain
• Pulley Size: 13T
• Color: Gray
• Claimed Weight: 240g

Compatibility
Designed for compatible Shimano mountain drivetrains using the appropriate Shimano shifter, cassette, chain, and drivetrain configuration.

Suitable for applicable 1x11 and 1x12 configurations and accommodates a largest sprocket up to 51 teeth.

Compatibility should be confirmed for the complete drivetrain, particularly shifter generation, cassette range, chain, and rear hub/freehub system.

Included

• Shimano XTR RD-M9100-SGS rear derailleur
• Includes only what is pictured and described

Condition

• New
• Non-retail packaged