The Shimano GRX BL-RS717L is a left-only hydraulic brake lever option that is designed to pair perfectly with a right GRX ST-RX715 Di2 Dual Control lever thanks to its matching shape and ergonomics. Skipping all the shifting electronics it's a lighter simpler left brake lever option for times when less is more.

Brake only left hydraulic lever is designed to pair with a GRX ST-RX715 Di2 right shift/brake lever

Provides a lighter simpler lever option by eliminating the shifting electronics

Lets riders dial in their preferred ergonomics with easy Reach-Adjust

Brake Lever Actuation	Hydraulic
Brake Lever Use	Left
Color	Black
Defined Color	Black