. 10-speed compatible Tiagra triple 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 20 teeth, for outer rings 50 tooth.