Description
The Shimano Alivio RD-M3100 Rear Derailleur features Shadow RD technology to keep the derailleur safe from trail obstacles.
- Super low profile Shadow RD technology
SPECS:
- Largest Cog: 36
- Rear Derailleur Mount Type: Shimano Rear Direct Mount , 10×1 Standard
- Chain Wrap Capacity (teeth): 45
- Cage Length: Long
- Rear Der/Shifter Compatibility: Shimano Mountain
- Drivetrain Speeds: 9
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