12-speed Di2 New User Guide
Just bought a new 12-speed Di2 bike? This page explains what the buttons do, how to charge, and what synchronized shfit does.
Hydraulic Disc Brake Lever (Shimano branded)
GRX BL-RS717-LS
The BL-RS717-LS is a left side brake-only lever, meant to to be used with the ST-RX715-R shifter. It matches that right side shifter's ergonomics, feel, and adjustability.
Since it's not an actual shifter - just a brake lever - it doesn't have any ports, no batteries, no firmware, and no buttons either.
If you want to install satellite shifters for use with your RD-RX717 rear derailleur, then you'll need to use a set of ST-RX825 shift levers. Those are compatible, and actually have SD300 and satellite shifter ports for use with SW-RS801.
This is the Shimano branded shifter. There is also a slightly more expensive, GRX branded version: BL-RS717.
Specifications
- Model code
- BL-RS717-LS
- Series
- GRX (RX717)
- Speeds
- 12
- Number of switches
- 0
- SD300 ports
- 0
- Satellite Shifter ports
- 0
- Wired shifting
- No
- Wireless shifting
- No
- Servo wave
- Yes
- Free stroke adjust
- Yes
- Reach adjust
- Yes
- Brake type
- Disc
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