The Dura Ace ST-9001 is a Dual Control STI for 11-speed drive systems. The modified handle shape, compared with the ST-9000, is more ergonomic and due to the sophisticated lever design, they also have a cleaner and tidier look. In addition, the levers provide more control for different riding styles and due carbon, they are very light. The SLR-EV is a powerful braking system which is easy to dose. Furthermore, the ST-9001 feature a new developed internal cable routing for more riding comfort, defined index shifting and reach adjustment.
