Di2 Cheat Sheets - what do those LEDs mean?
Ever wonder what those LEDs mean on your 12-speed rear derailleur, or 11-speed junction box? And what the button does exactly? Find out more here.
Disc Brake Lever (brake only, left)
BL-RS717-L
This is a brake lever only. It is meant to be used with 1x12 GRX Di2.
It has all the reach and free stroke adjustments the regular ST-RX715, but without the Di2 buttons.
Why? Well... on a 1x12 bike you probably don't need buttons on the left shifter, so, Shimano made a cheaper non-di2 version. And since ST-RX715 is only available as a right-hand-side shifters, well... it's your only choice, really.
It's either that, or use two ST-RX825 shifters on your 1x12 gravel bike.
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The BL-RS717-L is the regular version of this shifter, but there's also a Shimano branded version available. The difference? It has the '-LS' suffix, and the letters 'Shimano' printed on it. See the image gallery further down this page for an image of both brake levers.
Specifications
- Model code
- BL-RS717-L
- Series
- GRX RX717
- Weight
- 188g
- Number of buttons
- 0
- SD300 ports
- 0
- Wired shifting
- No
- Wireless shifting
- No
- Servo wave
- No
- Free stroke adjust
- Yes
- Reach adjust
- Yes
- Brake type
- Disc
Images
More images
