About this item MODEL: Shimano SL-TX30-7,7 speed shifter. SMOOTH SHIFTING: Brisk operation feel, smooth shifting ability. With a lever for downshifting and a thumb button for upshifting. AESTHETIC DESIGN: Ergonomic handle design, intuitive digital display of gears, easy-to-determine gears. STABLE AND EFFICIENT: Made of high-quality plastic and durable metal materials,...