Will work with 105 Ultegra Dura ace 11 speed.
Retro Bicycle Parts NIB NOS Shimano FD-M300 Front Derailleur Clamp On (New)
Shimano 105 FD-R7150 Di2 12-Speed Front Derailleur Braze-On New
New-Old-Stock Shimano 105 Front Derailleur...Clamp-On (28.6 mm)...Shopwear
Shimano 105 FD-5800 - 2 x 11sp - Front Derailleur - Braze-on - NEW
Black/Red Front Derailleur Brazeon Clamp Adapter 31 8mm/34 9mm MTB Bicycle
Sturdy Aluminum Alloy Front Derailleur Brazeon Clamp Adapter 31 8mm/34 9mm
