Shimano XTR RD-M9100 12-speed Shadow Plus Rear Derailleur

The XTR RD-M9100 rear derailleur by Shimano - for 1x drivetrains

The XTR RD-M9100 rear derailleur was designed by Shimano exclusively for 1x12-speed drivetrains. It has enlarged derailleur pulleys with 13 teeth for smoother running and an additional stop on the rocker arm, which inhibits noise development. Of course, Shadow+ damping technology is also used here, where a stabilizer counteracts the sagging, slapping and dropping of the chain. Some parts of the RD-M9100 are made of weight-saving carbon. The XTR rear derailleur is available in two versions: with shorter cage (GS) for 10-45 cassettes and with long cage (SGS), which can also shift 10-51 cassettes.

Specifications:

Series: XTR M9100
Application: Cross Country, Enduro, Trail
Gearing: 12-speed
Mount: standard
Capacity: 35 tooth (short), 41 tooth (long)
Compatibility: Shimano MTB 12-speed
Compatibility - Chains: CN-M9100

Technical Information:

Derailleur Pulleys: 13 tooth
Outer Cage Material: carbon (CFRP)
Inner Cage Material: aluminium
Other Materials: aluminium, stainless steel, carbon (CFRP)

Features:

- only 1x compatible
- lower preload in the lower gears to avoid too high of a chain tension
- additional stop on the shift rocker for low-noise drivetrain
- larger 13 t upper pulley
- GS version with 28 mm more ground clearance
- cage plates painted/anodised
- 8 joint bushings, fluorine-coated
- derailleur pulley bearings sealed

Note: This rear derailleur is not compatible with M9000 components and other 11-speed groupsets.

Technology:

Shadow RD+
Less distraction, quiet drivetrain. Rear derailleur stabilizer, reduces chain slap. Simple solution for chain drop. Lighter and more efficient than roller type chain device.

Models:

short:
- Cage Length: GS
- Largest Sprocket Teeth (max.): 45 teeth
- Largest Sprocket Teeth (min.): 45 teeth
- Smallest Sprocket Teeth (max.): 10 teeth
- Smallest Sprocket Teeth (min.): 10 teeth
- Chainring Difference (max.): 0 teeth
- Total Capacity: 35 teeth
- Manufacturer Part Number: I-RDM9100GS

long:
- Cage Length: SGS
- Largest Sprocket Teeth (max.): 51 teeth
- Largest Sprocket Teeth (min.): 51 teeth
- Smallest Sprocket Teeth (max.): 10 teeth
- Smallest Sprocket Teeth (min.): 10 teeth
- Chainring Difference (max.): 0 teeth
- Total Capacity: 41 teeth
- Manufacturer Part Number: I-RDM9100SGS

Contents:

- 1 x Shimano XTR RD-M9100 Shadow+ rear derailleur