Shimano Derailleur 9 Speed Alivio Shadow RD-M3100

Availability: In stock

The SHIMANO ALIVIO M3100 rear derailleur delivers a low profile design that lets you ride aggressively with fewer interruptions thanks to its SHIMANO SHADOW design.


  • Low-profile design
  • Total capacity: 45T
  • Max. low sprocket: 36T
  • Adjustment barrel
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