Shimano FD R8150 Front Derailleur Ultegra Di2 12 Speed Braze On Bottle Cages Synthetic suede palm is made Colour:Granite Grey Synthetic suede palm is made from a thin microfiber to combine durability with exceptional grip and comfort and newly sourced materials for the best puncture protection possible The Di2 actuators in the front and rear derailleurs of the current Ultegra series enable a significantly higher movement speed for a shorter movement time when changing gears and correspondingly rapid shifting processes The front derailleur which has also become more compact in its dimensions is thus not only faster than ever before