Shimano TIAGRA-4600 2 X 10 SpeedClamp Mount Front Derailleur can be discounted Aerodynamic position

Aerodynamic position

Small ball Bottom Bracket

Oversized 46mm wide 6061 alloy faceplate

Or maybe you just like the way it looks

Shimano TIAGRA-4600 2 X 10 SpeedClamp Mount Front Derailleur can be discounted Aerodynamic position10 speed compatible Tiagra front derailleur delivers pro features to sport level road riders Extra wide pivot link increases rigidity while reducing flex for improved shifting response Aluminium links and band to save weight and increase rigidity For road cycles equipped with 10 speed drivetrains Clamp band to fit 34. 9 mm frame tubes Plated steel chain cage Maximum capacity of 16 teeth, for outer rings 50 56 tooth