The Shimano Dura-Ace ST-R9270F-R Di2 Shift/Brake Lever paired with the BR-R9270 Hydraulic Disc Brake Caliper in sleek black is a game-changer for road cycling. Its ergonomic dual control levers offer a new level of comfort and control. With super - fast wireless shifting and precise brake modulation, it redefines cycling performance. The BR - R9270 hydraulic 2 - piston calipers are both sleek and compact. Their mono - body construction ensures low weight and high rigidity. The wireless connection not only gives your bike a clean look but also enables lightning - fast shifting. The shifter batteries last 1.5 to 2 years and are easy to change. It has wider pad clearance to reduce rotor rub, a raised hood peak for better ergonomics, and a longer hood body for more hand support. It's compatible with satellite shifters and has a maintenance - friendly bleeding process. Technical specs include hydraulic brake lever actuation, flat - mount brake caliper, mineral oil as hydraulic fluid, resin pad compound, and 12 - speed drivetrain. The brake lever is for the right side, with adjustable reach and no included rotor.


Using the Shimano Dura - Ace ST - R9270F - R is a breeze. For shifting gears, simply use the wireless shifters on the levers for quick and smooth transitions. When it's time to brake, squeeze the brake lever, and the hydraulic disc brake will provide reliable stopping power. As for the battery, it lasts 1.5 to 2 years. When the battery runs low, just replace the CR1632 shifter battery easily. Keep in mind that the wider pad clearance reduces the chance of rotor rub, but still check for any rubbing from time to time. To maintain the product, use mineral oil for the hydraulic system. The bleeding process is maintenance - friendly, so it's easy to keep the brakes in top condition. Also, since it's compatible with satellite shifters, you can customize your setup for better convenience.