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Shimano Dura-Ace R9100 11 Speed Rear Derailleur Short Cage


Redesigned derailleurs deliver lighter action and improved precision

Shimano’s new DURA-ACE R9100 mechanical derailleurs provide superior performance and easier set up. The new Dura ace rear derailleur features Shimano’s Shadow RD design, which gives the derailleur a lower profile and more stable operation. 

  • Shimano Shadow RD low-profile design
    • Pulley maintains consistent distance to cassette for increased shift stability
    • Less damage in a crash
    • Maintains compact and smooth appearance
  • Total capacity: 35T
  • Weight: 158g


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