Installation guide: Di2 wired shift levers
Learn how to install Di2 drop bar levers commonly used on Di2 road bikes or Di2 gravel bikes. This walks you through the process and lists useful tips.
Hydraulic Disc Brake Dual Control Lever
Dura-Ace ST-R9170
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.
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Just like the ST-9070, ST-R8050, ST-R8070, ST-R9150 and GRX levers, these ST-R9170s have a hidden button on top of the hoods.
I wrote an article on setting up the Di2 shifter hood buttons, so have a look if you haven't set yours up yet.
Specifications
- Model code
- ST-R9170
- Series
- Dura-Ace R9150
- Weight
- 160g (per shifter)
- SD50 ports
- 2
- SD50 satellite shifter ports
- 0
- Wired shifting
- Yes
- Wireless shifting
- No
- Reach adjust
- Yes
- Brake type
- Disc
- Free stroke adjust
- Yes
- Servo wave
- No
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