Discover the Shimano 105 ST-R7170-LE Di2 Shift and Brake Lever paired with the BR-R7170 Hydraulic Disc Brake Caliper for the front. This set comes with a 2x Flat Mount and a fork adaptor, all in a sleek black finish. The ST-R7170 Di2 Shift and Brake lever offers Di2 electronic shifting, enabling precise and intuitive gear changes for a wider range of riders. The 105 BR-R7170 caliper features the Shimano Flat Mount System with a low - profile design, perfect for road bikes. Key features include reach adjustment and customizable button functions for ideal ergonomics, a wireless connection for a clean cockpit and fast shifting, easy button function changes via the E - TUBE app, 2 x CR1632 batteries, 10% wider pad clearance to reduce disc brake rotor rub, a maintenance - friendly one - way bleeding process, and L03A Resin pads with finned alloy backplate. Technical specs: Hydraulic brake lever actuation, double drivetrain, no rotor included, black color, flat mount brake caliper, mineral oil hydraulic fluid, left - hand brake lever use, resin pad compound, 1000mm hydraulic hose length, disc brake included, adjustable reach, 12 - speed drivetrain, and compatibility with Shimano Road Di2 front derailleurs and shifters.
Using this Shimano 105 Di2 Shift and Brake Lever set is a breeze. First, make sure to install the components properly according to the included instructions. The reach adjustment feature allows you to customize the position of the brake lever to fit your hand size and riding style. To change the button functions, simply use the E - TUBE app on your device. When it comes to shifting gears, just press the buttons on the lever, and the Di2 electronic system will do the rest for a smooth and precise change. For the brake caliper, the one - way bleeding process makes maintenance easier. If you notice any rubbing of the disc brake rotor, the 10% wider pad clearance should help reduce this issue. Remember to keep the batteries (2 x CR1632) in good condition. When the battery is low, replace it promptly. Also, clean the brake pads and calipers regularly to ensure optimal performance. The hydraulic fluid (mineral oil) should be checked periodically and replaced as needed to keep the brakes working at their best.
