The Shimano 105 ST-R7120-R right 12-speed dual control shift and brake lever in black is a top - notch cycling component. Developed with data from a wide - ranging study of different hand shapes, it has a revised lever position and bracket shape. This lever offers quick and intuitive shifting, a signature of Shimano 105. Its updated ergonomics provide a light - touch shifting operation, letting cyclists keep their focus on the road. The blade shape shortens the lever access curve, so riders of all hand sizes and shapes can comfortably reach the levers. With reach adjustment, you can customize the fit. It also provides enhanced leverage for better braking and shifting control with less effort. The brake lever actuation is hydraulic, and it's compatible with Shimano Road rear derailleurs. It's a right - side lever, comes in black, doesn't include a brake, and has adjustable reach for 12 - speed drivetrains.


Using your Shimano 105 ST - R7120 - R shift and brake lever is easy. For shifting, simply use your fingers to operate the lever as you normally would. The light - touch operation makes it a breeze to change gears quickly. When it comes to braking, squeeze the lever firmly for smooth and powerful stops. Before using, adjust the reach to fit your hand size for maximum comfort. As for maintenance, keep the lever clean by wiping it with a soft, dry cloth after each ride. Avoid using harsh chemicals that could damage the finish. Check the connections regularly to make sure everything is tight and secure. If you notice any issues with shifting or braking performance, it might be time to take it to a professional bike mechanic for a tune - up.