On Sale Trek Parts Trek Iso Speed adjustable Seatmast Slider for Domane SLR Series – W516641

Bolt-on front derailleur hanger #W516589 in combination with 2x drivetrains on Trek ProCaliber and Farley Carbon.Attention:You need to use with 1x drivetrains the following separately available front derailleur hanger cover (if not present): #W516639.