Shimano Ultegra Sl 6600 Double 10 Speed Front Derailleur

This is a top level, road, lightweight and durable, SL front derailleur, that is compatible with a 10-speed double chainset and 28.6 and 31.8 mm seat tubes.
It has an Ice grey, Ultegra finish, that resists corrosion, while looking great.
It also has a light action spring that reduces effort required to actuate shifts, and an extra wide pivot link that increases rigidity, for improved shifting response.