Experience smooth and precise gear changes with the Shimano Dura-Ace ST-R9250 12-Speed Di2 Rim Brake STI Lever. This advanced lever uses Di2 technology, allowing you to shift gears with just a gentle touch, similar to clicking a mouse. Even in cold conditions, the tactile buttons ensure easy and comfortable shifting. The Shimano Dura-Ace ST-R9250 12-Speed Di2 Rim Brake STI Lever is designed with lightweight materials, featuring carbon fibre lever blades, a carbon composite bracket body, and a titanium clamp band and fixing bolt. This makes it both durable and easy to handle. Key Features Drop bar STI with shift buttons positioned similarly to mechanical Shimano STI levers for intuitive use. Servo Wave brake lever pivot works with super SLR brake callipers, enhancing power and ergonomics when riding on the hoods. Adjustable reach for levers allows a custom fit for all hand sizes. Wired connection to front and rear derailleurs using SD300 series wires ensures reliable performance.