The new SHIMANO 105 ST-R7170 shift/brake lever with BR-R7170 caliper features Di2 electronic shifting for the first time, bringing precise, intuitive shifting to even more riders. Reach adjustment and personalized button functions let you dial in your ideal ergonomics.

・Clean cockpit: Wireless connection enhances the bike's aesthetics while providing lightning-fast gear changes
»Longer durability. Two CR1632 batteries used (operating time: 3.5 to 4 years)
・Compact, ergonomic solution based on the DURA-ACE group
»The raised upper part of the shifter lever cover improves ergonomics, and the longer body provides a larger hand rest area
・Custom button function and adjustable ergonomics allow you to tailor DURA-ACE to your individual needs
»Easily change the button function using the E-TUBE app
・Simple reach adjustment allows you to find the optimal lever position
・10% larger gap between pads reduces the risk of friction with the brake disc
・Venting process for easy maintenance