Hydraulic Disc Brake Dual Control Lever
The ST-R9170 Hydraulic Disc Brake levers have two e-Tube ports each and weigh about 160g per lever.
They do not feature the dedicated sprint shifter port, so using the SW-R610 sprint shifters is not possible.
If you really want sprint shifters then the SW-R9150 sprint shifter is the alternative. These shifters are a bit bulkier than the older sprint shifters, unfortunately.
I wrote an article on setting up the Di2 shifter hood buttons, so have a look if you haven't set yours up yet.
- Model code: ST-R9170
- Series: DURA-ACE (R9150)
- Weight: 160g (per shifter)
- Speeds: 10 / 11
- Number of switches: 3
- SD50 ports: 2
- Satellite Shifter ports: 0
- Servo wave: No
- Free stroke adjust: Yes
- Reach adjust: Yes
- Brake type: Disc
Related componentsView all components
Modern Di2 shift levers have buttons on top of the hoods, but unless you're on 12-speed Di2, their default function only works with a wireless unit or d-fly. Learn how to set these buttons to shift derailleurs.