NEW Shimano 105 FD R7150 Di2 Front Derailleur 2x, For 2x12 Speed, Braze On, Down Swing, Black variant size 36 eu womens Constructed from a durable composite Clearance for 29 x Constructed from a durable composite material Carbon lever blade and composite lever body provide strength with the benefit of weight savings Crank FD Type Road Double Derailleur Capacity 16 Double or Triple Double Drivetrain Speeds 12 FD Shifter Compatibility Shimano Road Double Front Der Shifter Compatibility Shimano Road Di2 Front Derailleur Cable Pull Electronic Front Derailleur Clamp Braze on Front Derailleur Style Topswing Max Ring (teeth) 52 Weight 142 keyword search 105 full and semi synchronized shifting program