ST-R9270 All-new lever ergonomics on the DURA-ACE ST-R9270 dual control levers bring new levels comfort and control to road cycling. With our fastest wireless shifting available and even more precise brake modulation, DURA-ACE redefines performance. Now featuring SERVO WAVE ACTION brake technology, the new DURA-ACE ST-R9270 brake lever delivers modulation and control like never before. Wireless shifting keeps your bike looking clean while offering our fastest, most precise gear changes available. All of this resides in a DUAL CONTROL LEVER to employs the most advanced materials to offer light weight and refined ergonomics that provide comfort and control for the most demanding conditions. Clean Cockpit Wireless connection enhances the aesthetic of your bike while keeping shifting lightning fast 1.5 to 2 years of battery life with easy-to-change CR1632 shifter batteries Unparalleled ergonomics engineering refined with pro rider feedback Raised hood peak improves ergonomics, while a longer hood body increases hand support Compatible with satellite shifters SERVO WAVE technology optimizes brake control Lighter, smoother lever action Enhanced modulation thanks to an expanded braking control area Advanced Materials Carbon fiber brake lever and titanium hardware Compatible with wired connection for e-bike application Make DURA-ACE yours with custom button function and adjustable ergonomics Easily change button function with the E-TUBE app Find your optimum lever position with simple reach adjust BR-R9270 With an all-new design, DURA-ACE BR-R9270 hydraulic calipers are our most compact yet. MONO-BODY construction ensures light weight and rigidity, proving that good things can come in small packages. With an all-new MONO-BODY construction design, high performance braking has reached a new peak. The BR-R9270 caliper drops weight while also providing increased pad clearance, ensuring a quieter ride. Lastly, a new bleeding process makes maintenance easier than ever.