Shimano ST-R9270 Dura-Ace Di2 Hydraulic Disc Brake - Di2 Shift/Hydraulic Brake

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.