shimano tiagra fd-4700 34.9mm front derailleur

10-speed compatible Tiagra front derailleur delivers Pro features to sport-level road riders.Features:Extra wide pivot link increases rigidity while reducing flex for improved shifting responseAluminium links and band to save weight and increase rigidityFor road cycles equipped with 10-speed drivetrainsClamp band to fit 34.9 mm frame tubesPlated steel chain cageMaximum capacity of 16 teeth, for outer rings up to 53 tooth