Shimano FD-6500 is a front derailleur designed for smooth and precise gear shifting on road bikes. It features a dual-action lever system that allows for both upshifts and downshifts with a single lever, making gear changes quick and effortless. The FD-6500 is compatible with Shimano's Total Integration (STI) shifters, which allows for seamless shifting without having to remove your hands from the handlebars. It also features a wider link design for increased rigidity and shifting performance, making it a great choice for riders who demand the best from their components.