Shimano XTR RD-M9100-SGS Rear Derailleur — 12-Speed, Long Cage (SGS), SHADOW RD+
The Shimano XTR RD-M9100-SGS is the flagship 12-speed mountain rear derailleur, with SHADOW RD+ clutch and HYPERGLIDE+ for fast, quiet, precise shifting.
Flagship XTR 12-speed shifting with SHADOW RD+ clutch — genuine Shimano, brand new.
Will it fit? Long cage (SGS) 12-speed derailleur for Shimano XTR/Deore 12sp Micro Spline drivetrains up to a 10-51T cassette (41T capacity). 1x12; standard direct-mount hanger. Not for 11-speed.
Key Specifications
Brand | Shimano |
Series | XTR M9100 |
Model | RD-M9100-SGS |
MPN | RD-M9100-SGS |
UPC | 689228880252 |
Type | Rear Derailleur |
Speeds | 12-Speed |
Cage | SGS (Long) |
Max Sprocket | 51T |
Capacity | 41T |
Design | SHADOW RD+ · HYPERGLIDE+ |
Weight | 240 g (8.5 oz) |
Color | Gray |
Country of Origin | Japan |
Condition | Brand new — original Shimano packaging |
Technology Highlights
✓SHADOW RD+ clutch for quiet, secure chain control.
✓HYPERGLIDE+ shockless 12-speed shifting.
✓13T pulleys, sealed bearings.
✓10-51T wide-range capability.
What's in the Box
1 × Shimano XTR RD-M9100-SGS rear derailleur
Original Shimano packaging
Brand new in retail packaging. Ships from Ontario, California (US domestic) · Estimated delivery 3–5 business days · Free 30-day returns.
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