10-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 Shimano drivetrains For use with Shimano Tiagra 4700 STI Shifters. Plated steel chain cage Maximum capacity of 16 teeth, for outer rings up to 53 tooth Discipline - Road Product Type - Front Derailleur