Shimano Dura-Ace R9100 28.6mm Front Derailleur Clamp Shim

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Feature

Derailleur = the size of the clamp on the front derailleur you have
Frame = the size of the seat tube the derailleur plus shim will fit
Shimano Front Derailleur Seat Tube Shims

Description

Shimano Front Derailleur Seat Tube Shims Derailleur = the size of the clamp on the front derailleur you have. Frame = the size of the seat tube the derailleur plus shim will fit.