Shimano Tiagra FD-4700-BSM Front Derailleur 31.8mm

New 10-speed TIAGRA provides serious entry-level riding performance with cascaded technology from top-tier lines. The longer lever arm on the Shimano Tiagra front derailleur creates a light action at the shifter and precise, reliable shifting across a 16T total capacity and a maximum chainring size of 52T. For 28.6mm or 31.8mm (with included adapter) diameter seat tube band-clamp mounting. MPN: FD-4700-BSM