Shimano AD17-M Front Derailleur Clamp Shim, reduces 34.9mm to 31.8mm

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 Front Derailleur Clamp: 31.8 (1-1/4″) , 34.9 (1-3/8″) Weight: 4 Ultegra FD-6800 Front Derailleur Clamp Shim, reduces 31.8mm to 28.6mm 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